I'm ambiguous but not on purpose. 

Drew's point is a good one, since if the topic is subjective, the term "best" only has application to the person speaking.
 
Presets seem to gravitate people and produce sales, since consumers want the instant gratification of money spent. However, it is often not the presets that stand out but how dynamic ("tweakable") something is to fit the situation as needed.
 
I used to teach argument, and always told students that the goal is not to convert the other person, but to get them to acknowledge your point. Written arguments are the highest challenge, since no one is required to read them at all. A big chunk of that is also 1) to acknowledge the other person's perspective and 2) include an opinion with a descriptive "why." An opinion without an explanation that the other finds useful carries zero weight.
 
So much marketing has used the word "best" that it has begun to lose meaning.

Great points all!
 
Thanks for chiming in...
I learn't some things today.
 
Mel

There's a wonderful anecdote in Kenny Werner's book "Effortless Mastery" about Bill Evans. He's talking about a birthday party, I think, for Bill where there are lots of great jazz pianists in attendance, and a few people play on the piano that's there, which is unfortunately rather thin and metallic sounding, but when Bill plays it sounds different - richer, warmer, fuller... the idea being of course that a true master can make any old barroom honky tonk piano sound like a Steinway concert grand.
 
Conversely, the genius of Thelonius Monk is that he could make a Steinway concert grand sound like any old barroom honky tonk... (but in a good way) ;)