Which is better?

It's funny how three words and a question mark can be so misunderstood!

(1) Which ;I noticed the size of the Thread/Post numbers as I cruised into this forum. Actually, that's why I'm here...you had the best numbers for my intent. Now, the original thread here had two MPG numbers. There's no debate which of the two numbers is better--there better not be! But...our intent...talk about a nonunique phenomenon.

(2) is ;are these the most powerful two letters in sequence, or what? Here, this sequence just means "now".

(3) better ;again, not much debate; she's better than you!

(4) ? ;this one symbol gets the minds IPTs racing (Ideas per Thought)!

So, let's talk intent...

Oh, and I assume "Hypermiler" doesn't refer to a distance that is labeled a mile but actually longer than a standard mile? Someone help me out here...