Ugh, Bulletstorm was kind of like a upsized burger meal. It's kind of appeals to you at a visceral level at first, but afterwards, you just feel kind of queasy and regret the whole thing. Plus you have that plate full of fries that tasted great at the beginning, but now is just a soggy, greasy mess that you feel compelled to stuff down your craw.
Whereas Portal 2 was like sushi dinner. Impeccably presented, exotic, just the right portions, and no guilty, fat-ass feeling afterwards.
Bulletstorm just tried too hard to be funny and failed epicly at it, whereas Portal 2 made me grin from ear to ear from things as mundane as getting drenched in slime or bouncing off the floors and walls like a kid on a trampoline.
Mmm food analogy, i agree, and i think im having sushi for lunch.