I have most of those rifles,some are better for some things than others,butt for what you say =break barrel,not under barrel because I think it is easier to load for that faster second shoot,I will Always go with a .22 rather than a .177 if I can because I have big fingers.
I love my R9,it is a .20 cal.I love that cal. too,butt advise against getting it because of pellet selection.
Yea a R9 is the way to go,not hard to cock,accurate in any cal.fits me good ,not heavy and soooo many after market parts for it.
Just my experience .