I went Angel GT2 because I have never been let down by my Pirelli Angel STs, Angel GTs, or Angel GT2s in the past...Now you've got me questioning how long my tires are going to last haha. I have Diablo Rosso III's that came on it, I'm wondering if they're going to be able to survive my quest... I was looking at the Angel GT2s, I have sport demons on my rat bike and they are great, I'm sure everyone has their own opinions on tires though.
YMMV but for the kind of riding I do, and this trip in general, you will want something with a harder compound in the middle and softer on the edges of the tires.
If I was trailering down and simply riding the twisties I would lean more towards something along the lines of the S22.