Oh no not again.
There are many which I could choose and be just as accurate but for revolver it would be a S&W model 57 in .41 mag.
Pistol, the same situation but if I had to choose just one it would be a Colt Woodsman in 22LR.
If someone were to give me a couple of thousand and say I had to but a revolver and pistol, I think the pistol would be one of the large Glocks in 10mm.
Revolver, maybe another Model 57.