I have a Rally and I love it! The Rally is on the faster side so that should suit your preferences. I personally think this is the plastic to beat right out, I even prefer it over a delrin severe. Its fast, its stable, its durable, just straight out awesome! And the catch zone is marbelized so you can do some pretty long grinds. Theres a little gap between the yoyo and the weight ring which works like an IGR and makes thumb grinds easy. It can also handle fingerspins if you’re into that stuff. This is easily the smoothest plastic Ive ever played as well… I literally cant feel any vibe whatsoever on the string or even on grinds. Its smoothness compares to any other one drop, general yo, or even oxygene. It plays like a metal, I really do think this is the plastic to beat right now.
I have not tried the Crazy D though so I cant comment on it but I would assume its great as well. I personally say go for the Rally but you can’t reallly go wrong here.