I think this is a really good debate and obviously 3D has sued all three now in various track set ups. I have the option to buy a Sizzler Fat Track but already have the Adventure Force Crash Racers set and could easily buy another one, so which way to go. Well here's my thoughts having watched the Fat Track stuff and the Crash Racers set, as well as running a lot of tests on the Crash Racers track that I have.
Fat Track looks awesome and 3 cars side by side is super racing, as are the 6 car races that 3D has run in the past, but are there just too many "wrecks" and "wipeouts" on the corners, and even crazy spins on the straights?? On the other hand the wide straights have seen some awesome racing going on with last miniyte overtaking and the like.
Crash Racers on first inspection, and on a short track, does not offer much overtaking but seems to keep cars in line better, with less random carnage! And it connects excellently to Hot Wheels track which is a lifesaver! However, if set up correctly, with nice long straights, that aren't stupidly fast, and with a long finishing straight, there can be some great overtaking.
I ran loads of different races on a VERY temporary track and the 8 car races were amazing with all 8 finishing and lots of positional changes in the race. I now have a space set up for a double hairpin track and have loads of different options, ranging from a custom starting straight which is 4 cars wide, narrowing down to the Crash Racers corners, to a 2 lane start sitting 4 deep and then a long custom home straight which would widen out to allow overtaking on the home stretch! Very excited about the next week or so. My biggest dilemma is do I order another Crash Racers, or go all out on the Sizzler...............