I'd get the Kicker KSC41004 4x10s. The entire Kicker KS series sound great and are made with real rubber surrounds so they'll hold up reasonably well over time.
I thought I had the 6x9's but I take they left in the last great garage purge when my son dropped one. I was looking at a pair of Kenwood KFC-415 speakers but the dome design is a semi dome and max rms aren't as much as the Kickers. I am considering an amp and subwoofer in the future. The Kenwoods can be had for about $23 bucks less on Amazon