Bobbleheads are way better.

I like snowglobes for looks.but I like bobbleheads for skills and specials,so I'm going with bobbleheads.

I want something new but makes me happy when i find one.

Bobbleheads were nice, especially if you bothered to collect them all and see them all set up on the stand, but there were a lot to collect. The snowglobes, they look nicer, and are in a more reasonable number to collect them all, but they also weigh 2 lbs and can become stuck in your inventory if you take out your current buyer. I'd love it if I could drop one, so that I could put them around my Novac apartment.
I'm especially glad that there's not automatic +10 to a skill when you find one, seeing as the character can be max out so easily. A plus +1 to my attributes would've been handy.

Snowglobes, because it doesn't cheapen the SPECIAL stats or skills.

I like any in game collectible as long as there is some reason to collect them. For me that reason is at least a Display. Money or rewards are fine, but it does not have to be a skill boost. The bobbleheads were a holdover from the Sanguine Items where there was one item for each skill. I also like collectibles that are cool to look at.

What they should not do is make the only thing/person to give the items to easilly killable depending on a somewhat popular choice in a quest. We should have been able to directly place the Snowglobes, even if we do not get the monetary reward.

Here, here!

Anytime they have collectibles in a Fallout game, I want them to do something different each time.

I like what they do with snowglobes. I wish there was more for me to collect (and a smaller reward amount with each one).

I'd rather they have a small perk attached to each of them. Like heaven stones in Oblivion.

Neither.

Snowglobes is just collection item. Well, also 8000 free caps (Goodsprings Cementery, Mormon Fort, Vault 21, Lucky 37) on game start if you do NV rush. Bobbleheads gives real bonus.