For me, Rush seems to be the only form of cash game poker that I can truly win a decent amount at. I've tried, ring, 6max but my results and particularly my red line - non showdown winnings - are a lot better at rush.
I personally love it for the above reasons, I also enjoy the fact that FTPs accumulate quickly - that velour bathrobe will soon be mine! - and I also enjoy the pace and lack of waiting around for hands. I do not get bored and make stupid plays. I have to admit in the early days I was overplaying far too much but now I believe I've got the balance right. I also disagree that it is truly without reads. After playing for a fair time at rush - or even at the same stakes FR and 6max - you see the same faces again and again and are able to exploit that to your advantage. There are also a few "tells", if you will, that help you distinguish a players likely style and ability. E.g stack size - not buying in full and having auto re-buy on means usually that they don't really know what they're doing and other smaller but sometimes useful tells
like country of origin, screenames etc. There is a very good rush video on Deuces Cracked that goes through a lot of this.
Enough rambling. I love it