I've got a few that I wish I had back, all but one were stolen from my house 20 years ago.
Winchester M70 Varmint in .225 Win, easily the single most accurate rifle I have ever fired.
Remington 700 Mountain Rifle in .280 Rem, great rifle and I could carry it all day and not even notice the weight
Winchester M77 .22LR, I killed a lot of small game with that rifle and it was a gift from my father.
Lastly and the one that wasn't stolen:
SMLE No4 MK 1*, I paid $125 for it and it was in amazing shape. Stupidly I sold this rifle figuring I wasn't shooting it much so I might as well sell it, this is the reason I don't sell guns anymore.