I'm not sure I got one favourite...
Northforks are very nice bullets for 416 and 375 but expensive. I also bought some Barnes ttsx 250grain bullets to be used in 375 for reaching out there. Recently I sold off some Swift A-frames and bought Woodleigh PP and Norma Oryx to be used in 375 (disappointing accuracy with aframes) Woodleigh and Norma solids are great.

Trophy bonded bear claw and Sledge Hammer are very nice bullets but soo hard to come by. I wish Norma could come up with a tougher bullet for big game. Oryx is fine for a lot of animals - largest calibre is .375

Swift A-frames are nice bullets but often not the most accurate ones in my rifles. In smaller calibres I prefer Barnes ttsx, Nosler partition, Norma Oryx, Woodleigh PP or North Fork over Swift A-frames.
Cheers
Y