I feel very comfortable when someone is in my guard. And I serioulsy detest being in someone´s guard. When someone is in my guard I can try triangle, kimura, armbar, guillotine and other stuff.
I think my best strenght are the chokes, I have choked many people with triangles, guillotines and RNCs. For the leglocks I am not that bad either. For armbars (specially from guard) I still need a lot of work.