I would definately go for
Friend of the Shirefolk, since he will have maximum strength. Also, wound prevention would be recommended, since LoM is lurking around.
Hobbit sword play is worthless I guess, since with 9 comps, there will be plenty twilight. I would go with pipeweed because I love it, but it has so much good sides. It are possessions, so hard to get rid off, they cycle and they do all you want them to do. Healing, removing burden etc. Also, I would pick the heal Gorn, since with that many companions who needs an extra defender?
Servant of the Secret Fire for sure.
Merry, Friend to Sam will help you win skirmishes, rather than him winning for you.