I agree with many of your points Ian.
Concerning the SW, I'm afraid too that I'll be outnumbered very quickly.
The Fanatic is too "random" to be really useful but I want to give him a try because he looks more reliable than in LRB 4 (has a tackle zone now, no need to move him first and no roll after his action).
I agree concerning skills on SW. I'll probably drop Dodge on the Chainsaw (as he will die in a horrible way anyway...

) but I prefer keeping HMP on the Bombardier: it can be really useful in defense versus slow teams that take 8 turns to score (aiming the center of their cage each turn !

).
I played few games with Goblins under LRB 4 and I understood that Trolls are the key points. It's really hard to choose a skill (normal or double) for them as there are too many good options !
I prefer Nerves of Steel rather than Strong Arm concerning TTM because one of the common defense versus TTM is to stick lot of defenders near the Troll to cause a fumble. So Strong Arm won't save me in this case. However I think that I'll take Break Tackle for my Troll-Thrower (

) as it's more versatile.
And I'll finally take Piling On on the 2nd Troll !
Concerning multiple Sneaky Git and DP, I'm afraid that it won't be as useful as it used to be.

And I'll have even more quickly problems for setting up a decent team on each kick-off.
So finally I think that I will take these skills: Break Tackle on a Troll, Piling On on the 2nd Troll, Hail Mary Pass on the Bombardier, Diving Tackle on the Pogo (I really want to try that !

) and Block (Guard ?) on a Goblin.