Control wise I find the GO very uncomfortable.
I personally find the FAT(1000) to be the best for me

 

In my opinion (owning a 1000, 2000 and a Go) the Go has the worst controls. The D pad and nub are worse than their predecessors, and the shoulder buttons are also bad. However, the face buttons are nice and clicky. Control wise for me the 2000/3000 wins every time, plus it's easier to hold/play over long periods.

 

Fat Fingers The Go just doesnt feel comfortable for long play. I am not saying I cant play at all using it, but I literally have to focus on the control and hand just doesnt get used to it.

 

But that doesn't address whether you just got used to worse controls compared to a previous model, or whether they're better controls but it takes time to rid yourself of the impression that they're not.

 

I prefer the 2000/3000 model over the Go. Even if its not as slick or good looking the controls are better and the screen is bigger,

 

Controls are fine once you get used to it. I don't really have pudgy fat fingers, just long, slender ones. It works rather fine for me.

Even if your personal control preference goes towards a 3000 or something, the Go still has 16GB internal storage and the save snapshot feature which definitely make it worth while. Plus it's actually rather portable. A PSP can fit into your pocket but its awkward and bulky. A Go fits perfectly, I've carried around mine in my pocket really easily.

I'll agree with prowler and say it's the best handheld I've had.

 

It's honestly something you need to get broken into. Hell, I had my PSP 1000 for years but still didn't have the controls "broken in" for me until I played Dissidia 012 non-stop. Odds are if you play the system for a while you won't really have any issues for it. You may not find it better than the other PSP models but it'll certainly be just as effective.

 

PSP 2000 or 3000 is best for comfort but built more poorly compared to 1000 which is a very sturdy build. The slimness, lightness, and much improved d-pad are all valid reasons to get a Slim over anything else. Also earlier 2000 models should be easier to hack but I think they are all hackable now to an extent.

As for which model is best I think VIta will be best.

 

I only had the PSP Go for a short while, but I find the controls to be very uncomfortable. The D pad feels quite flat like the PSP 1000, and the buttons seem too small to play some games like megaman comfortable for me. I do like the portability of the unit though, but I perfer the 2000 model or 3000 model for the feel of the buttons.

 

Well, most people are their own opinions and not a fact. Yes, PSP 1000/2000/3000 are the best to go than PSP Go. That's why the psp go sell so poorly! Also, the PSP Go's design is very ugly and too small!