Personaly, I think that melee combat is lagging a bit behind ranged combat. But not by much.
Here is few suggestions to help it along.
The thing is, even if ranged combat *is* better, you couldn't have everyone in a party attacking at range. Someone has to soak up the melee attacks. So for every ranged character that is "better", they should realise that without melee guys there to smash things, they're sunk.
So - I think melee combat is still extremely valuable and doesn't need to be changed. If a character sits out at range, there is more chance that their allies are going to be taken down in melee without them there to help share the HP load.