@ Mwett - I could be entirely wrong, but: I don't think any of that stuff matters. I think the only thing that determines a player's arb/FA demand is his Overall rating, the winner of arbitration is 50/50 random, and the only thing that determines willingness to re-sign or sign long term is Patience.
I've fiddled around with a few approaches to arbitration, can't tell what did or didn't make any difference, but I can honestly say I've never seen any result that made me say "wow the player was obviously ticked off at me."