I agree, the most recent ISOS CDs haven't been that good. There is this one song he released sometime ago that's with a girl that's a cool song though. It's called Somewhere something IIRC
Yeah Tiesto is pretty good but the best DJ I've ever seen (yes you can laugh) is Benny Benassi. I think it was the combination of the company plus he put on a really nice show that made me enjoy it so much