Do they feel similar to each other in play?
the shapes are kinda alike, but to me they play alot different… it may be just me though…
i cant finger spin to save my life on a too hot but i can finger spin all day long on a queen.
queen is smoother
They are very similar.
Queen feels more agile and nimble, though, owing to the lighter weight.
Mine are equally smooth. Grind surface on the TooHOT (Golden Galaxy if that makes a difference) a bit better. I can fingerspin on the Queen a bit better but the TooHOT is fine.
Overall, I disagree that they play totally differently. I think they play like differently-weighted versions of each other. Which in and of itself is a significant enough difference to develop a preference, but not significant enough to discount their many similarities.
They’re both stable as heck, though. 
TL;DR: They are indeed similar. However, TooHOT has a spin-time advantage, Queen has an agility advantage.
Guys, I forgot to mention that I’m talking about the 7075 variant of the Queen. That one weighs almost the same at the Too Hot. Having said that, does the Queen still beat it in speed?
I couldn’t say. I have only used the 6061 Queen. I would think they’ll be even more similar.