I'm an E in one foot and an EE in the other. For sandals. . .I've got a couple pairs of Tevas I like and a pair of Columbia that are nice. My favorite pair are from Wal-Mart though. I bought them in an emergency, but they fit great.
Have you tried Merrells? I LOVE KEENs and have a narrow foot, and I've tried on many pairs of Merrells and they have been too wide for me, but KEENs fit fine.
Keens don't come in wides unfortunately. I have 3 pairs that no longer fit me after a weight gain and haven't found anything nearly as good to replace them with.