I think it mostly depends on position and opponents. UTG+ MP I'd say you have to open up a larger size to deter players behind from following along. Knowing you will always be first to act puts you at a disadvantage even with AA-AK. LP and Button you can flat or raise. I'd flat to aggressive players knowing they will C-Bet OOP and you can raise over the top and get some more value to AA. Raise or shove with multiple limpers before you to try and isolate 1-2 opponents.
Always doing the same thing will eventually lead to tells in your game that people can catch on to. There is just so many depends on the situation type of things when it comes to playing certain hands. Just have to read the table and play to your stack and your strengths.
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