It would be hard to compare the construction, rubber, etc of Vega Blues to Maxxis. Very different tire.
Blues need a track that bites up good to build heat in them to get them going. They do like heat and abuse though and don't fall off like yellows.
I've never cared much for the Whites (or Reds for that matter) and focus on Yellows mostly -- we have had some good success with the Blues, but only on tracks that build a lot of tire temp.
I only have experience with the whites on pavement but I like the tire. I think it is a little underrated on the pavement side. I like them more than the yellow in the summer.
Maxxis will be fine once all the shipping gets back to normal, that Suez Canal mess really backed things up.
Things be back going here before much longer.