I'm not a springer guy, got pretty frustrated with them until I bought my first PCP. I bought a used Hammerli Pneuma in .22, which is the same as the previously mentioned Hatsan AT44s. Did a few minor mods on it, and got it shooting at 830 fps for good shot strings. Managed to get it very accurate, and it downed plenty of small game. Easy to fill with a hand pump as well. I'd say my best achievement with it was a starling head shot at 67 yards.
I've shot a pretty ridiculous number of fine air rifles. After all that, I went and bought my end game rifle, the FX Streamline. For the price, it just can't be beat. I have done a review on it here, and my opinion on it has only improved after putting about 1500 - 2000 down the barrel. It is truly a match grade worthy rifle at a price that is disproportionate to its capability. They're back in stock at AGS now, too!
For the first time in years, I barely pay attention to new airguns coming out, or drool over guns at our Canadian distributors. It's just that good. I recommend .22 if you're going for one.