If your raise is getting three callers or more every single time, you've accomplished neither of these things.
Raising there would do a number of different things for you, including the first of the two things you mentioned. Anyway don't lose the forest for the trees. On a fundamental level, the reason you'd want to play larger pots with strong hands should be quite apparent.
So, you need to find a way to avoid multiway pots entirely.
This is kind of backwards since you'd be hoping for calls, not folds, when raising with not just aces but a variety of strong hands pre flop. Generally (as with everything else in poker this isn't ironclad), when you raise for value, the more people who err by calling with hands you crush the better. If you shove AA preflop the EV of this play is at its maximum when you have 8 different callers, not 1 or 2 or even 3. I know shoving isn't quite the same thing because it guarantees a showdown. Still, when you're raising AA, the thinking shouldn't be "gee I sure hope no one calls me so that I can win 1.5 blinds" unless you're jaded from some recent terrible luck with AA, or you don't understand poker whatsoever, or you really need to use the washroom and want the hand resolved asap. Anytime you're putting money into the pot with the nuts in a cash game, you're better off getting multiple calls.
This conversation reminds me a lot of one I had with a player on the Zynga boards. The play chip players didn't often fold to his raises so he started limping AA/KK lol to see if he'd hit first before playing a big pot. True story. I explained that people who don't fold when you have monsters is a ~great~ reason to raise, and he afterward started thinking more in terms of maximizing EV instead of winning as many of the hands that he played as he could.
The second method has the drawback that you lose immense value when everyone around you folds and you just pick up the blinds
Sooo..... making what's deemed to be a regular sized raise has the drawback that no one's going to fold and it defeats the point, while making a huge raise has the drawback that no one's going to call and you lose immense value. There's a definite problem with this reasoning, but instead of pointing it out I'll see if anyone else can spot it. Anyway yeah raise sizing is pretty important isn't it. That happy medium, or ideal size, or whatever you choose to call it, does exist though, so you needn't resign yourself to open limping. I suppose one reason to make the play might be to try create a particular image for yourself, since most of the players I know and play against would tag you as a fish (with reason) if they saw it.
A pot of literally a few blinds isn't anywhere near "bloated" btw. It's not that I'm getting picky with semantics, it's that the difference between a healthy live/loose game sized raise with a bunch of calls and a bunch of 1 blind limps is huge. It has a lot to do with how reckless it is to bet or call 3 streets with AA unimproved.