so im relly into the feral tree, and i have a few questions that are bugging me.

If you want to tank do you have to spec more of a tank, If you mainly want to dps do you have to spec more into dps talents?

what makes feral druids and rogues different, and how is each better at what?

and is the druid class overall a good pvp class?

Yes in order to tank you would have to spec more into the "Bear" talents and to DPS you spec more into the cat talents. Im actually making a lvl 70 twink kitty at the moment i already have a druid though i just wanted a lvl 70 twink lol. But to be completely honest druids used to be the OP (over powered) class over rogues unless you were a very skilled rogue mainly because druids could shapechange and heal themselves now that Cata came out rogues have recupperate which has totally changed rogues and made them OP as hell. I have a level 85 rogue and recupperate is rediculouse build up 5 combo points pop recupperate and vanish heal yourself up its rediculouse. What makes rogues and feral druid differant is feral druids are about bleeds and burst rogues like in the sub. tree are all about burst, mutalate rogues are about poisons and combat is more of an in your face hello im here to kill you fighter. BUT feral druids bleed damage is well i dont even know the words its crazy damage all i can say. Positive if your getting hit by a hunter as a druid and they concussion shot you pop a heal pop back into cat form and it takes you out of the slow. Overall the druid class is very good at PvP resto druids spec'd right basically cannot die unless theres an healing reduction on them and then again its still hard to kill them. All in all druids are very good at PvP but rogues get recuperate at lvl 12 now and are very OP while questing with that but druids are very OP as well PvP wise i'v been playing a rogue since i started playing 5+ years ago and im found of them just started to play a feral druid my level 80 druid is resto/boomkin aka moonkin. But im loving the feral druid so far but im only a level 32.

Druids used to be awesome in PvP. You couldn't kill a resto druid. Shapeshifting got you out of snares. That's gone. I'm sure they're OK still, but not what they were. (I quit playing earlier this year).

Yes, if you want to tank at level 85, you need to take the bear talents, and cat talents for dps. I bear-tanked at level 40ish once as a resto druid, but you can't have kitty talents and tank in the endgame.

Rogues have more tools for melee dps. They used to have better stealth, but I think that's been changed. They have the misdirect-like tool to give threat to your tank. They have better aggro dumps and they have better crowd control. Out questing or in PvP, being able to self-heal or go into bear form makes you more survivable as a druid, but then sap and blind and vanish go a long way as a rogue.