Reflectors shouldn't be a problem for us since we have our own. Can you shed some light on why you believe otherwise?
Up close, we just don't have time to reflect back.
Far away, it's a reflect battle, and our reflect takes a little more skill and finesse than some other reflectors with more active frames.
The only reflector that is 100% better than ours is Fox's. He can just chill in that reflector while we sweat trying to swap Shadow Ball away. The main issue is that 99% of the projectiles in this game aren't worth reflecting. We have one of the 3 strongest, most reflect-worthy projectiles in the game. Most of the reflecting we do is our own Shadow Ball against other reflectors, but we lose most reflect battles because we have to be within a very particular range to reflect back, and our reflector loses to some others due to frame data.
If we go through the reflectors:
Fox - he wins for free
Falco - he wins up close, volleyball at far range, we win at mid range
Zelda - all based on when she starts the spin. If she reflects early, she'll get a second reflect right near the end of Nayru's Love, and we'll eat it. If she reflects mid or late, we win the exchange. Spacing-dependent, too. Complicated case.
Palutena - kind of like Zelda, but Reflect has some weird stuff that happens. Sometimes it seems to reflect back at Palutena on a double self-reflect. I don't fully understand this, but most Palutena players use Super Speed anyway.
Ness - not a reflector, but so damn annoying against a good Ness player.
Lucas - will be just like Ness.
Rob - see Zelda.
Mario - feels like he wins this due to better frame data, but I don't have a ton of experience in volleyball matches against him.
Dr. Mario - see Mario.
Game and Watch - ow, right?
Link - just has to not move to negate all your time and energy (so to speak!).
Pit - seems like we always win this one.
Dark Pit - see Pit.
Mii Gunner - never fought one, but it works like Fox's, right?
Megaman - Skull Shield is more mobile than most reflectors, and Megaman can keep moving while it's on. Highly variable, and sometimes Shadow Ball just decides to ignore Skull Shield. We can't ever "win" outside of this, though, because Megaman can still move while Skull Shield is up.
Villager - we are super screwed, haha. Worse than Fox.
Wario - gets fed and powered up.
Rosalina - gobbles it up and doesn't care.
Look at all those characters that just don't give a crap about Shadow Ball.