To be honest, Dayan Zhanchi and Moyu Aolong/Weilong are really really good. If you haven't felt a moyu cube before I'd suggest getting one of them to get the feel, otherwise I'd stick with Zhanchi. My Zhanchi is actually faster than my Aolong lol. Also, you do like crispy cubes? Or do you prefer more gummy cubes? Either way the three I mentioned are all, still, extremely good. You're also better off modding the cube yourself (tensioning/lubing).
Edit: just realised you said you have a guanlong lol, pick whichever you like more and go for that one ^_^