I think I have approx 35-38 blushes including BUs and MSF and EDSF, but my all times favorites are Hidden Treasure, Fiery Impact and Earthshine My collection actually really began last April with Reel Sexy and 1st ED then HC in July. Prior to that I had only owned Raizin and Love Thing however BU's is my weakness
From the top of my head: Magenta (Reel Sexy barely touched) Supernova (barely touched) Love Thing x 3 (less one given to my mom) Ring of Saturn x 2 (3rd loved blush, got one on Ebay reasonably) Alpine Bronze x 2 Hot Nights x 2 ( extra was an accident as a friend got one for me and I had one pre-ordered) Fiery Impact x 3

Hidden Treasure x 3

Blazing Haute Flaming Chic Stratus x 2 Solar Ray x 2 (not sure if I was thinking, barely used my original one and ended up picking up another at CCO in Orlando, new and discounted) Earthshine MSF x 4 (one almost done)

COTU (sold my BU) Star Wonder x 2 (sold both) Shape The Future x 2 Double Definition x 2 Glorify x 2 Superb WOG Didn't count: Raizin (my first blush and only one I ever hit pan on, love it but never replaced due to LEs) Prom Princess (got one for someone then ended up selling mine as well)