wine for my wedding

[Georgie]

Hi there boys and girls! We've decided to serve only wine and beer at our early afternoon reception. The caterers gave me a list from which to pick two whites and two reds. Keep in mind, that as far as I know, there are no real "wine" people coming to this shindig. So think about wines for a non-discerning crowd.
Here's the white list:

Sauv. Blanc--Sutter Home Barefoot or Luna diLuna
Chard.-Sut. Hm., Woodbridge, Barefoot, Luna or Yellow Tail
Pinot Grigio--Adagio, Cavit, Vista or Zoonin

Here's the red list
Cab-SH, Barefoot, Woodbridge, Bolla
Merlot-SH, Barefoot, Woodbridge, Bolla
Shiraz-Yellow Tail
Luna di Luna blends-Cab?Merlot
Sang/Merlot
Ruffino Chianti (blue label)

I can also order something else that's not on the list. Any thoughts on decent party wine?