First of all, all of these are great choices. It’s hard to go wrong with CLYW or SPYY.
The Gnarwhal, Addiction, and Sasquatch don’t feel floaty. They have a more solid feel on the string. As GregP mentioned, the original Punchline, if that is something you would be interested in, now that thing definitely feels floaty. For it’s size and weight, the stability and spin times of the Punchline are phenomenal. It’s also one of my favorite yoyos.
The Gnarwhal and the Addiction feel kind of similar to me on the string. The Sasquatch, however, is a beast. It is the more competition-oriented of the three because of it’s size and spin times, I guess. Personally, I don’t care for describing one throw as better suited for a competition, but that’s another topic. So, I digress…
I’m a big fan of both CLYW and SPYY. I love the Gnarwhal, but if I had to pick just one yoyo out of your choices, it would be the Addiction hands-down, all day long. Not that it necessarily plays better, except for grinds and matador, I just like it. I feels good in the hand and on return, light but solid on the string. Super chill, and you gotta love those spikes.
Also, another thing worth mentioning is resale value. You can get a used SPYY yoyo for a lot cheaper, than a used CLYW. That also means it is easy to get more of your money back for a CLYW yoyo, if you decide you want to sell it later.
Keep in mind, as well, that a lot of this is my opinion, and therefore, highly subjective.