My Irideon tights are my current favorites, but I also like Tropical Riders and have recently bought my first pair of Rackerwear tights (so far, I like them a lot..but have only ridden 50 miles in them).
I use Kerrits for training rides, as I have found they do not hold up for me over the longer distances (I used a pair for a 2-day 100 last year and they were literally coming apart at the seams when I was done).
If you are looking to dissipate heat, look for a non-cotton tight as they are SO much cooler. The moisture-wicking ones are slightly more expensive but are totally worth it.
I am not personally familiar with the Crazy Legs brand you linked, but they sure look like fun!