I guess for me it is what strikes my fancy on that particular day. To choose a favorite would be hard but if you asked which is my least favorite is probably the Daisy 880 because the plastic stock just feels cheap as all get out
I am curious why your favorite air rifle is your favorite. Is it because of accuracy, shot cycle, trigger, comfort of shouldering, all of the above or another reason. You may vote twice. Mine has to do with the mood I am in, and if the rifle likes me that day. Some days one rifle seems to like me better than others and then the next day it changes.
I have several different airguns for several different uses. For example... Betty Lou and I were out until Mid-night last night shooting cans at 20 yards by the moon and star lights. We had 1 solar spotlight on the targets. We were shooting our sawed off B2-1s with 3 coils cut off the springs and open sights. gosh.. we had a ball. Laughing like 2 little kids. So, last night, a couple of $21 home hacked trunk junkers were our favorite.
I was thinking of finding a nice piece of wood and trying my hand at furniture making for the 880 just because the winter is coming maybe some beech