I suspect the higher DC tips the "power" argument.
However, on the fun-n-flexible side, the MT wins hands down. Having M-Acid Sheath, Elem Shield, Shadow Shield, IGMS + Divine Power, Living Undeath, Implosion, Heal, Regen, Gr. Restor, Fire-in-Blood, et.al. all-in-one build is hard to ignore.
I agree R-caster (epic) bonus feats are trash. WotC are idiots for not having the primary casting abilities (Gr. Wis, Gr. Int chains) in there (Epic Tuf I -> X = WTF???). I use the PRC Leto to swap them manually.