Probably the one thats not posted in the general forum.
Edit: Just to be not completely off topic, I would buy two of the $45 or buy a shu-ta and something else. The shutter is probably my favorite yyf yoyo, and it only costs $45. Most of the $100+ YYF’s are good, but the $45’s are just as good. Most of the $100+ ones are also (usually) old models. The newer ones are cheaper, and in some cases, better.
This is a no brainer for me. I would go with the Aviator. I think it is the best yoyofactory ever IMO. It is incredibly stable, long spining and fast. This yoyo is packed with solidness and power.