OK guys, here are the results on aleo-vs-grympy at Quarterfinals.
The match line-ups & winners (first team mentioned is the one to get first move in each match ):
Code:
Match #1 -- Aleo :[RM WM SA WH TS SA] vs. grumpy:[PK TS BM BB TS SRM] -- Winner: Aleo
Match #2 -- grumpy:[SM SA SA RM RM WM] vs. Aleo :[SA WL WM BB BB TS ] -- Winner: grumpy
Match #3 -- grumpy:[SA SA PR TH TH WH] vs. Aleo :[RM BM WL BM WH SS ] -- Winner: Aleo
The match recordings, live streamed in twitch and with mics open (except grumpy's 3rd):
Match #1: Aleo's POV -- grumpy's POV
Match #2: Aleo's POV -- grumpy's POV
Match #3: Aleo's POV -- grumpy's POV
After 2nd match: Looking at the emerging pattern, it seems that either of the following is "true": (a) Winner is team to act first, (b) Winner is team with 2SA, (c) Loser is team with one archer. If (b) is the case, it means I'm in for a defeat in the last match! 
Speaking of (a): Is there any way to know who will be given first turn in a friendly match? In QM/RM/TM, stoicmom has verified that he who first launches a "Match Available" banner gets 2nd turn, i.e. he who accepts an available banner/challenge gets 1st turn. Maybe, in FMs, the one to click on "Ready" button 2nd gets first turn?
After 3rd match: Seems like the "pattern" was none of the (a),(b),(c) mentioned above
Actually, it was something like: "Team with most archers wins", that is quite in-line with the fact that Puncture is the strongest passive in the game, etc.