Yep, weapons repeat in the series. The fire weapon, the ice weapon, the three-way beam weapon, the boomerang weapon, the "charge" weapon. I don't know that I've ever had a particular fave MM weapon.
MM3 and MM4 I played parts of but never to completion.
Oh I've heard MM8's voice acting...it's bad. But hey, not the first time Capcom fouled up--Resident Evil??