I would suggest going out to a range where there are people firing different chamberings. If you approach them politely and with respect, explain that you are new to the sport, and that you intend on getting a rifle for youself soon, most will let you fire a couple of rounds through their rifle.
Its a lot easier to decide what YOU like. Its not that important what WE like.
No such thing as a stupid question. What is stupid is not asking it.