I think my favorite Barnes will always be the 45-250gr Expander MZ. This bullet has never failed me and has shot extremely well for me in the largest variety of guns and loads.

In the 54x50 i love the smallest 50-275gr Expander and buy them out if on clearance. That huge hollow point opens up even on mild loads everytime.

Knight had a sale on the 250gr but sold out before i could get a bunch, so i bought the 285gr Spitfires for about 50% off. Good bullet but very finicky about expansion at low velocity.