Pantone collaboration looks nice, but that top button... ugh. Sure they don't match up to a Mackintosh though. Speaking of quilted Barbours, the Japanese SL version looks nice as does the Spey fishing version. The latter looks a bit traditional, but with a spey detail (and special label inside).
I'd be interested in seeing what you have. I'm rather addicted to outerwear and have quite a few pieces myself. The metal bar that holds my Barbours in my closet crashed the other day, but I didn't have it securely in the wall. Was worried I'd have to get rid of some. Anyway, I've only got pieces from the past two years.
The Mackintosh wool ones were in my local TK Maxx (they often seem to get Mackintosh stuff) and I picked up the last one of the three I own for the clearance price of £27 - nice when things like that don't sell because people don't recognise the name...
Barbour-wise beyond the Barra, I have a slighly modified (by Barbour) Cowen Commando, a Drover, an old A7 International from the 70s and a lighter-weight motorbike jacket called the Beacon. Weather and time permitting, I'll get some pics up this weekend.
I'm a 44-45 chest and effectively sized down to a large. It's a close fit across the chest when buttoned and with a jumper underneath, but the arms on the extra-large were too long.