Greater god Lolth stomps Jean Grey hard. Vecna and the other greater gods are the strongest 2-As on the site thanks passive probability manipulation that makes it so her actions happen before her opponents (This works on Acausality type 4), Magic and NPI can hurt Abstract Existence (Type 1), Nonexistent Physiology, and Transduality (Type 2), as well has infinite hax layers, on top of having 1-A BFR, Fear, and Madness (type 3) all of which are thought based, as well being some of the few 2-A verses that still qualify for above baseline 2-A AP and has almost every spell and class power printed in D&D.
2-C Lolth is the same as 2-A just minus the passive probability manipulation. With 2-C venca and 2-C gods are tied for 1st place on the strongest list.
High 6-A has the same hax as the the 2-C key I forget in she keeps the hax layers and is a 4-D smurf. the high 6-A avatars are tied for 2nd strongest high 6-As on the site.