This is not an "advice" question- more of a "survey". What do people feel is the best gun in the market that is available- balancing features, quality, price and ability to modify (i.e. caliber change, add-ons, etc.) and whatever other criteria you want to apply.
I'm sure we could all vote on a few models of high-end gun, and quickly determine there is a $1000.00 AirArms or AirForce product that wins for "best" ignoring such things as price- but I'm more interested in what is more 'middle of the road' to be judged as the "best".
Please include your reasons for your selection. Also, the only caveat is that the gun must also be available currently- not a 'classic' that hasn't been available for 10 years or the like (Next topic might be one of "which is the best airgun ever offered?").