I wonder why people still bother with this shit...
There are so many good games out there that can scratch the "tactical" itch, and even card games.
Maybe, just maybe, mercenaries is gonna be something nice. Somehow i doubt it though... probably some other imbalanced crap that they didn't properly test, or somehow they gate players into certain builds, or... whatever. Really not expecting much from these designers.
Kill parrot over Baron, IMO. Baron's iconic, and easier sniped. Parrot is... just a parrot, with sketchy synergy with most of its own tribe (Most deathrattles spawn replacement minions, which you lack space for with a parrot a lot of the time).