I prefer the google docs version Draccan posted for a few reasons
1) Variety- I know most Warmaster armies have been cut down on purpose, but I've always gone and expanded them anyway- for example my Orcs and Goblins (already one of the biggest lists) now has savage orcs, savage orc boar boyz and spider riders- plus more to come. This is related to the next point...
2) I like my Warmaster armies to resemble my Warhammer armies, so I like the option of having Eagles in my Warmaster army, accompanied by Warhawk Riders. I also tend to theme my Warhammer armies, so I like to be able to give a similar theme to my Warmaster armies, but that's currently difficult because...
3) Restrictions- I'm making a small 1000pt Wood Elf force and want to have a good mix of units. In the Trial Armies list that's just not possible- more than 500pts in the first 1000pts must go to minimum requirements. Most units are then expensive, so I can only field another 2-3 units and not have the variety I want. I can't take a lot of Glade Riders or Wild Riders and have a strong mounted contingent to the army, they'll always be outnumbered by the 5 minimum infantry requirements. Similarly, I'd like a treeman- they're iconic. You can't take one until 2000pts in the Trial Armies list.
As Stormwind mentioned, the Skirmisher rule doesn't apply unless you add an extra 5pts per unit, so you can ignore it if you want. I admit it sounds strong- from what I understand it's from Ancients, so to those familiar with WMA it may be a simple rule to play.
