Food (start with the important one)
Best: Thailand, hands down, no question. Curries, spices, fried dishes, fun nuggets... all done perfectly. In Thailand, I can pretty much walk into just about anywhere and get something enjoyable, if not out of this world.
Some delicious Thai food. Can't get enough of this stuff!
Worst: Laos. I'm sorry, but Laos didn't bring it. I actually skipped meals in Laos (which anyone knows is not like me at all!) because they just disappointed me. They did, however, own on the sticky rice! That was their sole contribution to good food.
Best: Laos. This partially redeems Laos for their bad food. Lao coffee is amazing. It is possibly, if I may be so bold, some of the best coffee I've had.
Worst: Thailand. NesCafe everywhere! You find the occasional establishment advertising, "Real coffee!" as if it's something out of this world, when in fact, in most cases, it's still just a Denny's-status cup of coffee.
Best: Laos. To label any southeast Asian beer with the word "best" is a bit difficult (especially coming from beer-tastic Oregon), but BeerLao is still a tasty beer. It's tasty, it comes in big bottles, and it's cheap! (within the country)
BeerLao - good stuff!
Worst: Cambodia. Anchor Beer seemed to be the country's beer... bleh! It's watery, tastes like shoes, and manages to leave you with a throbbing headache the next day after only 2 beers. Something's not right about that.