Jennifer Hale is way better.  Is there supposed to be a poll on this thread?

Ugh....I cannot stand male Shepards voice at all.  He seems like he is rushing to get the words out of his mouth.  Also it seems too high pitched for the main look atleast.  

Hale, of course.  
http://www.youtube.com/watch?feature=player_detailpage&v=oNixoKm9T7w#t=420s  
I rest my case. Tali romance killed Meer for me. 

Hale, although at first I played ME1 and ME2 as a male Shepard. Tried to play both games with a fem shepard and the difference was staggering (especially in ME2).

Hale. 

Female Shepard is the only way to go

Jennifer Hale.  She sounds more natural than Mark Meer, who isn't bad, but he doesn't have a charismatic voice like she does.  For example, on Omega, when you're recruting Garrus, she sounds genuinely scared for him when he's lying down on the floor, bleeding.  In my opinion, she's my ultimate Shepard.

Also, on Tali's loyalty quest.  I chose the  persuade option, because my Paragon score was high enough, and she belt out a very passionate speech on Tali's defense.  That was some powerful acting she did.

I think I posted here already, but Meer is by far better in my opinion. Hale seems too forced.

Hail to Hale

Hale seems too forced.

@CL60 said:

Hale seems too forced.

This. Meer all the way. Shepard is a dude.

when jennifer hale picks up stuff her voice gets weird. otherwise, they're on par with each other imo.

I like them both equally, but I think the game was written around a male shepard.  This doesn't become too obvious too often but there are times when it just makes more sense... and that's fine.  The canon Shepard is male.
 
I've just split up my games.  My male shepard goes renegade, and female goes paragon.

Hail Hale.