Ok...but before I look them up,
since the '90s isn't very reassuring, so you'll have to name 4 or 5 acts that were the previous 'best'.
Best band of the 90s for me is jamiroquai without a doubt. At the time they were the best band I had heard since the 80s
Unfortunately i can't view or post vids from work.
but y'all need to check out 'dirty loops'
THE best band i've heard prob since the 90's! Swedish 3 piece Funk/Fusion/hip hop/jazz cover band. Unbelievable musicianship and SOUL!
edit: oh yeah, there is no guitar in there tho - ot?