these aint no pro strats but just how I play these 2 characters for the past few years
power moriya:

+A x 2 is pretty good for poking arround against characters that doesnt have really fast moves, u can also cancel is into a

+C.C for quick recovery and/or possible hit.
Jump B is pretty good, always use it when jumping.

+A->appleslicer and

+B x (1-3) -> appleslicer are the only 2 specials that can be canceld into appleslicer for decent dmg.

+B.B for poking in range, cancels projectile.
Not sure how well teleport B works on human players but it sux donkey balls against psychic CPU players, C is quite useful for getting out of a bad situation.

+B is quite useless other than for ending combos,

+A is fast Mori's best AA.
cant remember much about his normal moves and their pokability.
basic combos (just random things i use): Jump B, B,

+A x 2,

+B/fwd+B (fwd+B does more dmg but takes lots of practice to connect,

+B need to be timed (slight pause after 2nd

+A) for full 2 hits. im sure u can cancel first

+A into his appleslicer super), if blocked, do a

+C.C after 2nd

+A, or just a

+A straight away for a possible counter.
power Setsuna:

+B is useless, no potential as AA and

+B does more dmg as a combo ender.

+C whenever u have to opportunity, it's setsuna's most important move.

+B, good dmg, comes out very fast, good punisher and combo ender, but just make sure u dont get blocked =P
jump+B 2 hits, to get both hits in u have to execute it early when jumped, which makes him quite safe in air.

+A has good recovery, u can poke arround with it when u in the right range, both

+A and B got a bit of air covery
qcfx2 + AB = good combo ender, decent air covery and good dmg, decent range.
jump B (2 hits), B (2 hits),

+B/qcfx2+B/(if blocked)qcf+A
Kaede: basic combo: Jump B, B,

A (2 hits), super cancel, power geyser
not sure if they helps, maybe sumone else (ie. PS) can give more useful tips.