"but aa can be taken down by cruz no doupt. i think he would have much more trouble with monson then with aa"
Maybe if it was a contest where Arlovski promised not to do anything but defend the takedown, then maybe Cruz could get it. Otherwise, Cruz will need a lot better striking skills, or Arlovski is going to obviously know to sprawl and brawl. And when all you have to worry about is sprawling (and you're actually capable of a good sprawl) and kickboxing, it's not as hard to defend takedowns. Look at Alessio/Sanchez, CroCop/Coleman, etc. there's a billion examples of that. So I really highly doubt Cruz gets Arlovski down if they fought, and I think it's actually completely incorrect not just my opinion, but almost officially wrong to say he'd get him down easy.