To me, "best" is relative and temporary. And most often it's indeterminable in the first place.

Any notion of absolute best is a daydream for me; my quest has always been to fine best value within my budget. This is what I mean by relative. Furthermore product advancements and my changing requirements make even best value a temporary thing.

It's also a quest to determine what is best, even the relative, temporary best I'm talking. How much trust can you place on your advisors' judgement or your own? Not much maybe, but it's all part of the fun of it.