I suppose that as a big fan I had played a big number

SMT1, SMT2, SMT3 Nocturne, SMT4.
Strange Journey
Devil Summoner Soul Hackers, DS Raidou Kuzunoha vs The Souless Army, DS Raidou Kuzunoha vs King Abbadon.
Persona 1, Persona 2 IS & EP, Persona 3, Persona 4
Devil Survivor 1, Devil Survivor 2
Digital Devil Saga 1 and 2.
And there is a big chance I may be forgotting one or two.

I made a boss battle theme collection of all those games in my youtube account xD.

[quote=@Happy Go Lucky]
If you have a 3ds, i highly reccomend SMT iv, though beware the difficulty. Its an overall great experience however x3
[/quote]

SMT IV is actually easy in SMT standards. In fact, together with Persona 3 and 4 these are like the easiest games imo.