In 2, you get 5 based on weapon, 5 based on class, no matter what, and worst, some weapon/class combination sucks. Like Warrior and Greatswords (as one example.) There's only two skills, including the Auto Attack, which are useful in all fights, the remaining three require you to move, and/or be at range at the start.
Without getting into a huge debate about GW2 mechanics, this statement right here? Couldn't be more wrong.
No, seriously, the guys who do the math on this stuff, and warriors who know what they're doing in general, know that Greatsword is one of the warrior's better damage options and that its auto-attack in particular is terrible.
Ideally you want to be using the auto-attack as little as possible while mashing Whirlwind, Hundred Blades and the dash skill (whatever #5 is called) as often as possible.
"But Shjade," you say, "Whirlwind goes right through things when you use it! How is that manageable?"
And I answer, "That's why groups push/pull enemies into walls, so a warrior can whirlwind on top of it for all three hits." If that's not possible, you whirlwind through it for, hopefully, 2 out of 3 hits, then #5 dash back into it and hundred blades.
The top dps combo for warriors, at this moment, is Axe/Mace and Greatsword. The ideal rotation, starting with Axe/Mace: 4, 2, swap to GS, 3, 5, 2, swap to A/M, 2, full auto-attack chain, repeat. It keeps a high stack of vulnerability on the target and smashes through the GS combo of rapid heavy hits before going to the axe's very high-damage and fast auto-attack chain (unlike the greatsword's slow, weak, and more importantly slow
Also, @Hemingway: structured PvP lets you start off with level 80 characters with all their tools unlocked and equal gear to everyone else. You can only use it in those arenas for that specific kind of pvp, but that sounds like what you're asking for, at least. For pve/wvw though, yeah, you have to grind your way up, 'cause while you technically CAN go to wvw zones at level 1 and get bumped up to level 80, you don't get any of your abilities unlocked for you and you don't have the stats from level 80 gear, so you are essentially just free meat for everyone else on the battlefield if you do that.