affliction or demonology...Follow

Either one. If you want your DoTs to be more powerful though, go with Affliction, though an Affliction/Demo build is viable, I prefer complimenting my Afflic with a little Destro.

The Felhunter we can all get, I think you ment the felguard, which yes, you need 41 points in Demo to get. He is basically a more offensive VW with less armor. he can be great if you spec right for him and enjoy that style of play. Many here like it, I couldn't stand not having my Affliction goodies though.

It's really up to you, 'locks can be good in any of thier trees, it all comes down to which playstyle you prefer.

On gear, before 40, you want +sta, +sta, some +int and more +sta. After level 40, you start seeing gear with a lot of different things like +Spell Dam, +Crit chance, +hit rating and so on. What you need kind of depends on your spec, but +Spell Dam and +Sta are still highly favored by all specs.

What are you doing? Sounds like you need to help level. In that case, i would say level up as affliction to 50 then respec demo for the felguard. The felguard will allow for little downtime since hes gonna be tanking and you can just dps/drain. Another fast way (a little bias here since im affliction) is to use the drain tanking strategy. This would be speccing affliction and DoTing everything/fearing and just using lifetap/drain life. This makes leveling very fast and your downtime very little. I also think this way is more fun. You arent just healbotting your felguard, but thats my play style.

My warlock is my second toon. My main being a hunter, I rolled a lock mainly out of PVP frustration. Since I started leveling her, I ask every lock I come across what spec they recommend for leveling. I'd say that 95% say afflic.

The rest say demo, but even they say "Do afflic till 50 when you get the felguard." I've been affliction since the start and I really like it. Fast leveling and really effective in PVP. I'll be hard-pressed to switch when the time comes.