Again, read the title. Also exclude battles from the spin-offs like the RPGs, sports games, etc.
SMW, YI and SMG's Bowser battles are the best (and have the best music), while SMB1 and SMG2 have the worst.
SMW, YI and SMG's Bowser battles are the best (and have the best music), while SMB1 and SMG2 have the worst.