BOSS GT3 or GT6? Which one is the best?

[metal mike]

Hi!
I am wondering which are the differences between the GT3 and GT6.Could someone who owned one of these, tell me if they are the same(I am talking about the amps simulators and O/D).I want to buy one of these and I don't know which(the GT3 is a little cheaper).
Thans

 

[Fusion2]

i have the gt3 and luv it, do a google and see if Boss has done anything new to the 6, if not it should be the same thing with more shiney things on it