I used to wear the gas permeable lenses, and they were horrible for my eyes. I had to wear them because I have an eye condition. They used to dry out my eyes and I could only stand them for a couple of hours.
I switched to soft contact lenses and my first pair were the Acuvue 2. They were ok, but they still dried my eyes. The next pairs were the Acuvue Oasys. They are great. I barely feel them.
They're so comfortable, that one time I fell asleep with them still in, and when I woke up I forgot about them. I wore my glasses with my contacts still in that whole morning