I'm surprised we haven't developed a system to summarize a unit's attack and defense stats. It takes a long time to type out A(5) 5/5, D 2/2. I think it'd be nice to summarize that as something like 10 attack 4 defense. Here's a system for doing so. The purpose is a simplified system to refer to similar types of units generally against a benchmark of the A(5) 5/5 D 2/2 stats. This rating does not to capture the different nuances of different attack and defense stats (i.e. counter matchups), nor does it capture one-time effects like charge bonuses, impact hits, etc (although you can say this unit has X attack, and Y attack on the charge). It's not intended to serve as a replacement for point costs and the formula.

Update 1: tweaked numbers on the skew

Update 2: tweaked numbers on skew again

Defense Rating:

Step 1: Add up the defensive skill and toughness.

Step 2: Adjust for skew. Add 0.25 if the skew is 2, and add an additional 0.5 for every difference above that.

Examples:

D 2/2 = 4 + 0 = 4 DR

D 1/3 = 4 + 0.25 = 4.25 DR

D 0/3 = 3 + 0.75 = 3.75 DR

D 1/4 = 5 + 0.75 = 5.75 DR

D 3/3 = 6 + 0 = 6 DR

Attack Rating:

Step 1: Add up the offensive skill and power.

Step 2: Adjust for skew. Subtract 0.25 if the skew is 2, subtract 0.25 + 0.5 = 0.75 total if the skew is 3, and subtract an additional 0.75 for every skew above 3.

Step 3: Adjust for dice. If number of dice is greater than 5, add 0.5 x (number of dice over 5). If number of dice is less than 5, subtract 0.5 for 4 dice, and subtract 1 for each die below that.

Examples:

A (5) 5/5 = 10 + 0 + 0 = 10 AR

A (5) 6/5 = 11 + 0 + 0 = 11 AR

A (5) 4/6 = 10 - 0.25 + 0 = 9.75 AR

A (5) 3/7 = 10 - 1.5 + 0 = 8.5 AR

A (8) 5/5 = 10 + 0 + 1.5 = 11.5 AR

A (3) 6/5 = 11 + 0 -1.5 = 9.5 AR

A (4) 4/7 = 11 - 0.75 - 0.5 = 9.75 AR

The Vanilla Swordsmen has 10 AR and 4 DR. "Balanced" unit stat lines seem to be 8 AR and 2 DR, 9 AR and 3 DR, 11 AR and 4.5 DR, and 12 AR and 5 DR.