The controller is actually the biggest problem I have with my PS3. It sucks in every possible way.
It wasn't a great controller to begin with, why has it been used on 3 consoles? It is terrible. It could have been improved so much by now.
It's 2008 and sony still has the D-pad as the primary input method, great. The analog sticks are incredibly bad (they feel way too slidy), the buttons are bad (too flat). It's just generally uncomfy as well, the shape doesn't fit in the hands well. Lots of people think it is comfy simply because they have been using it for so long now. However whenever I give a controller to people that don't game often they hate it.
I think it is probably the biggest issue I have with the entire playstation brand. Nintendo constantly improve their controllers. Microsoft went from a horrible controller to one of the best i've ever used. Sony went from good for it's day to outdated but still okish to wow this piece of junk again?
At least Nintendo and MS are trying and getting better and better. While Sony's controller is just stagnating. I would easily rate the PS3 controller as by far the worst this generation. Last generation I would put the Ps2 controller miles behind the GC controller, and probably behind the XBox controller S (the small one), but ahead of the Xbox controller (seriously that thing was a joke)
If the PS4 comes out and has the same controller again I will go nuts X.x