I’m partial to the S&B covers, they work well and you can still snap shoot with them on if you jump a buck. (Just realized I need to clean mine before season starts…)
The old BC Blizzards are my favourite for the same reason as above. The Vortex Defenders are also decent, and I really like AAD covers if you treat them gently (although they're a bit loud on opening). Tenebraex has been decent for me, but I prefer some of the others previously mentioned.