Adept, loved it in the first. Will probably like it better this time around.

I played through the first game with a Soldier the first time around, which unlocked the assault rifle for my Adept on the second playthrough... but I'll go with adept on my first ME2 playthrough.

I'm going to play as a Soldier, just as I did in the first Mass Effect.

Changing my Soldier into a Vanguard. The charge move looks awesome, shotguns are always fun, and even in the first game I just had more fun when my character had powers to toss around. Playing a Soldier is a lot less... active than the other classes. It's still fun, but when I played more with other classes I found the Soldier I made at first harder to go back to.

There is already another thread with the same topic here   
 
http://www.giantbomb.com/mass-effect-2/61-21590/what-class-will-you-start-me-2-with/35-379125/#68

"There is already another thread with the same topic here   
 
http://www.giantbomb.com/mass-effect-2/61-21590/what-class-will-you-start-me-2-with/35-379125/#68 "

The vanguard was my favourite class, a mix of soldier and adept. Perfect. a mix of ACTION AND POWER! Yippeeeeeeeeeeeeeeeee!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
I'm playing Mass Effect right now as it happens, to set up the universe that I want to go over to Mass Effect 2. :-)
 
Plus, I still need to get the Liara achievement. Kind of annoying to discover what I was doing wrong all this time but hey, now I know.