For hunting, I personally like the .308 Winchester. It can be very accurate and a joy to shoot, albeit restricted to 180 grain and lighter bullets.
Therefore, I also like the .30-06 for its heavier loadings with additional whomp — and, I am a M1 Garand, ‘03 Springfield fan.
22's are fine for plinking but, I prefer a shotgun for hunting Squirrels, Rabbits, and birds.
The 7mm Remington Magnum is the craze of many in these parts and I agree with its superiority in some cases. I just never got around to hyping myself into one of them.
I may be a little nostalgic but, I cannot justify the super fat squatty rounds of today, often with less magazine capacity.
My sweetheart is the 7mm Mauser (7x57) on a 1909 Argentine action.