Situational Awareness
Being aware of your surroundings and your current situation at all times is crucial for surviving in PvP. This includes the actual terrain and setting that you are in, your character's current hit points and mana/energy/rage, the status of your abilities which have cooldowns, and the status and location of any nearby enemies. It's a complex set of assessments that must be constantly reappraised, since PvP combat is a constantly changing battlefield.

Strength in Numbers
In any PvP situation, having allies to watch your back is a good thing. When battling in a group, such as in structured PvP situations such as Arena and Battlegrounds, its crucial that everyone work together as a team. Stay in the same vicinity, use communication, coordinate attacks and ability use, and have a strategy. Good teamwork is probably the most important factor for success in group PvP - it also takes time and practice to develop, but its worth working on.

Stick Together
When in a group, try to remain in the same vicinity. However, don't bunch together too tightly, as that will make your group susceptible to area of effect attacks. Instead of bunching up, try to be close enough together where everyone is in range of beneficial effects such as healing spells, and where you can quickly assist a comrade. Sometimes it will be very tempting to leave your group to chase down that almost-dead enemy. Consider that you may be vulnerable to attacks if you separate from your group, and you can weaken them by leaving them a player short. Some teams actually work on this as a strategy, pulling apart strong groups or baiting them into ambushes. You're only as good as your weakest link.

Level Difference
The way level difference affects the relative power between players and computer-controlled monsters is present but to a lesser degree when comparing players of differing levels. Level difference between players can be overcome by factors such as gear, PvP experience and know-how, the setting, and class matchups. Lower level characters should not be overly afraid of a slightly higher level player, especially if they happen to have the advantage of numbers.

Equipment
Upgrade your equipment with stats that will assist your survivability in PvP. Every class will be able to take more hits and live longer by increasing their Stamina. Resilience is also a useful statistic as it decreases enemy critical hit percentage, critical hit damage, and damage-over-time effects.

Racial Abilities
Try to learn the opposing faction's racial abilities, as some of them can be used in PvP. Undead, for example, have an ability that counters Fear effects. All Night Elves can use Shadowmeld, which makes them invisible much like a rogue's Stealth. Gnomes have Escape Artist, which lets them escape from immobilizing or movement speed reducing effects.

Mounts
The epic land mount is much faster than the normal land mount. When chasing down or escaping from other players, those with an epic mount have a huge PvP advantage over those that don't. There are also additional ways to increase mount speed. Mithril Spurs and a the riding enchantment for gloves are gear enhancements that improve mounted speed. The quest reward Carrot on a Stick grants the same benefit. These bonuses stack with each other to a maximum of 10% bonus speed. Having these speed boosts can allow you to catch or get away from a player with the same base mount speed. In Outland, a new speed-boosting item called the riding crop was introduced. This item increases mount speed by 10% and is crafted by leatherworkers.

Pursuing and Escaping
There is a wide range of player spells and abilities that can momentarily prevent or impede players from running: Polymorph, Fear, Charge, Entangling Roots, Concussive Shot, Frost Shock, Curse of Exhaustion, and many more. These spells and abilities can also be used in the reverse: to escape from pursuers. One of these abilities can buy you the time and distance between your enemy to flee. Once enough time elapses since your last combat action, you will go out of combat and be able to mount. Some class abilities assist in both pursuing and escaping, such as a Druid running into water and escaping in aquatic form, a Priest fleeing on water with the Levitate spell, or a Mage jumping off a cliff with Slow Fall. Hunters have tracking abilities which makes them harder to escape.

Using Items in PvP
Many items, particularly consumable items and those made by certain tradeskills, can assist your survivability. Many items created with Engineering are handy to use against other players, such as the Gnomish Net-o-Matic Projector, the Gnomish Death Ray, and the many craftable bombs and grenades. There are a few one-time use items that can also stop players from running, such as Netherweave Nets which are made with Tailoring. In addition, potions are extremely handy for PvP. Healing and mana potions utility is undeniable, as their timely use can literally be the difference between life and death. Other potions provide valuable utility, such as Swiftness Potions which are great for a quick escape, or Free Action potions which keep you from getting stuck. In addition to crafted items, some special items earned through PvP combat are extremely useful to helping you survive in battle - a notable example is the trinket earned from Honor points which removes crowd control effects from your character.