If you just want to quest a little and have a little fun doing it, 1.09 will be your best bet. Don't know too much about 1.08, but 1.07 has some bugs in it that make the playing experience less friendly. Things you will miss are increasing the player setting, a good merc and monster hit a lot harder as well. This patch does have some very good items though.
1.09 is the easiest patch, make sure you have 1.09b, because in this patch chance to cast on weapons works, in 1.09d not. Watch out for multishot lightning enchanted bosses, they are the most dangerous monsters in the patch. This patch was made for barbeque lovers.