I realize there have been a couple of threads on this previously (read through 'em) but wanted some opinions on my particular situation.

I currently have three CCs. All personal expenses go on an RBC Visa, all work-related on Amex. Car rentals and the like go on an MBNA Gold MC. All three are no fee which is the primary reason I let myself get saddled with 3 CCs. Combined, I'm guessing I put a max of $25K on all three last year.

Lately, I've been wondering if it would be worth it to run all my expenses through the CIBC Aeroplan gold CC and get rid of my current Visa. I've usually been adverse to a fee-based CC but then again, 15K miles is a trip to the M'times at Christmas, which usually runs around $500. Another card I hadn't considered is the $11K in annual rent which I general just run through my chequing account.

An opinions?