bullet is certainly the king of easy though. and makoto plays similar in some ways to tsubaki and is hella easy this time (with none of the combo difficulty/instability and with auto-confirm/pilot blockstrings). but probably either has the problem of having trouble going too far because despite being easy they just aren't that good. Probably worse with Makoto.
but if you wanted easier there's a bunch of easy or relatively easy characters that are actually good too. Jin, Hakumen, Azrael, Ragna, Mu... I went the other way with Rachel who is much too hard but also great
though I've usually heard that Relius is not too hard too, TBH. Just no DP, but he still has overall good defensive options.