window replacement--pvc or aluminum covering the old wood?? pls help !!

I am replacing 2 or 3 of my house windows . House is 25 yrs old, and windows are triple pane wood. The wood is not rotten, but the paint is often peeling/bubbling from direct sunlight & rain. I can't afford to spend 10 grand on the whole house, so ...a few now (one is cracked, the other steamed).
Pvc frames...white is not going to match my current brown trim. ;( This might only be for a few yrs till the others are re-done.
Now a contractor offered to replace just the glass, and I can get the old wood covered by painted aluminum in any color now or anytime later. That solves my color-mismatch problem .
BUT..is the alum. fix (and it looks ok to me, I saw samples) as good for resale of my house in 15 yrs as the pvc would be? thanks in advance.

not a craftsman. (retired)