I've been really happy with my Kenwood 2 & 3 way 5x7 / 6x8's.
Have the 3 ways in the doors & the 2 ways in the back. Found them in the closeout/open box section of Crutchfield... less than half the price of new ones, when I got 'em (about a year or so apart) both boxes had been opened, but nothing inside had been removed.
Very crisp highs & great mids. Powering them via my 4ch MTX amp at about 50w per channel RMS crossed over at about 120hz.
With a little work you can get 6x9's in there if they're the only speakers you're running (aka no sub) to provide you a little more bass.