Best end-game boss class/mob class out of these 5?

Just deducing from the fact Empress is probably the only boss accurate enough to hit them, and I hear it gets worse once she applies Potential Lock and dips down that avoid.

Although I will admit that I do have decent funds for my own character and I have knocked out at least half or more of his gears off, even under potential lock I still pack about 3k avoid on my DB and still dodge Empress efficiently enough that I sit in her body all day even with it on. If I want to be safe I have mirror target out to absorb damage like a BM. If that fails me then I simply use a potion, or next best thing which is vampire which easily absorbs enough hp even with potential lock (I do have it maxed though). To be realistic here, you only need 5k avoid on a DB to dodge her 95%-99% of the time and with 3k avoid I'm still dodging at nearly 85% still. Also to add more to this, Empress does not have good accuracy at all, the bosses you'd count for high accuracy are chaos pink bean, hard mode hilla, hard mode magnus and aswan (if you even want to count that totem as a fake boss at all). If you seriously do need to dodge you can just spam CoH for its nearly infinite invincibility frames backed up with being able to even dodge DR dmg.