I'm considering purchasing Michelin Anakee 2 ...
What is the difference and which one should I select? I'm looking to travel up to Labrador/Happy Goose Valley Bay this summer, meaning some decent gravel.
I wouldn't be concerned with getting the H-rated tire if your concern is related to treadwear. The tire on the left in the pic is an H-rated Anakee 2 with 12k miles and change on it, with all but a couple hundred of them being very loaded travels.
While I think the Anakee 2 is a great 90/10 tire, I would personally think twice about using it on the any roads with a lot of large/sharp gravel. I had a gravel puncture in AK, caused by a seemingly innocuous piece of gravel (also the tire in the pic) when it still had a pretty significant amount of tread on it. Thus, if the V rating implies a stronger carcass with an additional ply, well, then, it may, in fact, be worth going with the V-rated tire.
Based on experience, I can definitely recommend the Shinko 705 as a tire with a very durable carcass that would likely work well on the Trans Lab. I've put alot of gravel miles on them. However, it's treadwear is less than half that of the Anakee 2. But, for around half the cost, it's not a big deal. If I was going to do the Trans Lab (and I originally was going to this past fall, but had a change of plans), I'd use a Shinko 705 or Kenda Big Block (based on experience with the tire) for the rear.