Trumpeter is actually the last Empress request (with Mind Charge).
Yoshi with debilitate is nice, in that you can do everything with one persona (buff, debuff, overkill). Enduring Soul is good, and also one I automatically assumed (Masakados gets it as the last skill) would be put on him, like Arms Master. Yoshi only has 7 natural skills. Elec Amp, Brave Blade, and Ziodyne are replaceable. Arms Master should kick out one (from Masakados), Enduring Soul for the other, and fuse it on the 24th for Debilitate in the other spot. There you go.
Arms Master (Masakados)
Debilitate (fuse Dec. 24)
Heat Riser
Power Charge
Hassou Tobi
Enduring Soul (Masakados)
The other natural skill he learns is Elec Amp. Naturally Strong: Fire, Void: Physical, Reflect: Electric/Light. Could pretty easily get...well, the components themselves naturally get Resist Fire, Dekunda...not too much else that's stand out. But their components can get some more resistances and other cool skills, so...creative fusing is fuuuuuuun.
And yeah, he's Tower. Hanged Man isn't spectacular, and...mmm...Death isn't bad, but you can do without it. Tower is one to focus on, since Shiva and Yoshi, and Masakados, and Mara, and Cu Chulain are all good. And parts of other good personas. Judgment maxes like normal, as does Fool and Star. Temperance...Vishnu isn't bad, but not super-awesome. Lovers has an excellent healing persona, and Chariot's got a physical powerhouse ultimate (owns the strength one badly). Priestess' ultimate is...eh. About as good as in P3...which is...not much. Devil, Justice, and Hierophant are all good.
Really, I think P4 has good balance in personas. Definitely solid ones in all categories.