For the description you cave, a guhong v2 might not be your thing. It's very fast, but it's relatively clicky. Not that it's bad, I own one and like it, but I'm just warning you. The Zhanchi or Weilong might suit you better.
Unless it's modded that is. Unmodded Guhongs are really clicky, modded they're only surpassed in smoothness by maybe the Aurora.
Zhanchi is great too, but it's somewhat crispier than the Guhong. It's pretty smooth modded too, and most say slightly faster than Guhong although not by any great margin.
Weilong is really fast, and not particularly smooth, although not too crunchy either. Might suit you, but it's hard to know.
Also, Shengshou Aurora is really smooth, pretty fast, really good cube. Only it lacks torpedoes so it might pop a bit more if you're a bit rough.
The thing is, though, that everybody can say they like smooth cubes but then they'll hear everybody recommending the smoothest cubes on the market.
I'd rather tell you this:
Gans III, Fangshi, Maru CX3 are all really crunchy, maybe you'd like them if you tried them but they don't fit the criteria you give. All the other cubes above I talked about are the ones that I personally would fit your criteria the best.
