Mmph, hard one…
On the one paw, being real heavy and soft is great (and I love stuffing my face); on the other getting blimped out and round is also brilliant (what can I say, I grew up at the time when cartoons loved that stuff)

Best compromise is sticking me with a hose and sloshing me up with liquids of your choice; get to be heavy, soft, round and sloshy all at the same time!

(You could also skip the hose for some things ;3)