I think you're a little out of date, you should try a phone with a higher resolution bigger screen, it's a world difference! The Pre 3 isn't the biggest, I'm sure it won't feel in the pocket like the Dell Venue Pro or alikes, it seems like a pretty well balanced device.
I actually like the size of the Pre 2. It fits in my pocket really well. I think the big slabs are too big for a phone. If I want to watch a movie, I'll use my 57" HDTV instead of my phone.