I didn't like carbon at all in the early years, but as of about 10yrs ago I'm all carbon now (mostly Beman ICSH w/a few PSE Carbon Force).
What finally made me switch was the durability out in the field. Got tired of my 2413 XX78 blowing up on me with compound bows in all but the softest ground when shooting grouse at 4-5yds for hunting camp dinner. 2315 held up better for me, but also heavier (though quieter too).
Probably the main reason I stick with carbon today, is I seem to have an easier time finding the combination of weight-speed-arrow balance I want.
The down side to carbon, is I can't recycle them in the rare case I do break one like I could with aluminum.
If I were ever to go back to a traditional recurve, my choice would most likely be aluminum as I think they flex better or are more forgiving off the shelf or w/shoot around rests.