I have found that the only way I can enjoy GTA is on the PC. With the mouse, every movement is precise, perfect, much more controllable than a big clunky controller. And your face is a foot from the screen...
Try it. I used to spend hours every day just mucking around in San Andreas. I LOVED IT. But only on pc. I could ride a street bike and perfect it... I could do tricks. Insane stuff you would never acheive on a system. TRY IT.