Darth Hater

Playing on a PvP server where we are highly outnumbered so I figured stealth is a must have.  Just wondering which of the two would be easier to play and is faster to level?  Will also obviously be going biochem so that should help with any survivability issues since I can just spam medpacks.  Also have around 1.2 million credits if its worth it to twink him and my companions while I level.  Also how bad was the nerf to scoundrels?  Is it noticeable or nothing to worry about?

With Scoundrel you won't necessarily need Biochem since you can heal yourself. Shadow can also tank, so it's up to you on that I think.

Pick the class based on your play style and what you want to do.  Don't pick it just based on stealth trying to level.  Sometimes you'll get ganked, but sometimes you'll do the ganking.  Its all about how you want to play the game though and if thats your thing, my advice is go for the shadow (because I tend to always get raped as a sage in PVP by sith assassins and consular shadows (when facing republic in huttball)) .  Unless Scoundrels can do that super spammable backstab like agents can then I say go for them, cause that move is wicked.  I've had people crit me 3 times in a row totaling over well over 15K damage. I really havent looked that much into it so I don't know. 

On my 50 Scoundrel I haven't really noticed a big difference since before the patch. I don't know anything about PvP play since my Computer crashed hard in Warzones. But I played for the story and Smuggler has one of the best on republic side as far as I know.