I've kinda always wanted to run three
WL heehee.. I like your idea. Just a few tweaks if it were mine.
IMO flamers are always better. Template is a bit over 8" long and hits everything under it. Squad killer, especially with Doom. So I'd drop the catapult.
If there is one thing I've learned about Eldar is that the Starcannon is a bit spendy for what you get. Scatter Lasers are 2x as good at shooting transports (double shots), and cheaper. The Starcannon begins to fall off a bit more because of the abundance of cover. Scatter Lasers still seem to outperform them for their points against
MEQs (if in cover, easy to find)
I love
EML though, pop shots off at light-medium armor or try throwing some pinning blasts at other units. Think you've made a grand choice there.
Because of the
WL BS 4 the Bright Lance is still a pretty good choice, makes for a pretty effective long range tank popper. This is what I'd go on two of them. Or maybe one
SL &
EML (anti-horde).
Also because of his
BS 4 I wouldn't give him a lowly Suriken Cannon, waste of upgrade almost. Give him a better gun since he's better than most of your army at shooting anyway.
If I give a
WL his sword I really only like to give him a
SC,
SL, or
EML. For all the reasons above. So I think you're good here too.
Avatar sits right up with these
WL no problem. However, if you have Eldrad I'd run him. If you're going two or more abilities on a farseer he's almost always a better choice. He gets all the farseer options (minus jetbike
lol), can cast three abilities a turn (two of the same, fortune
WL & Avatar), has a
PW witchblade, and has divination. All for about 85 pts more than a Doom + Guide &
SS Farseer. Bargain
As much flak as the Striking Scorpions seem to catch.. I like em. They do their job well. I'd personally infiltrate more often than not, as they don't fleet. They're one of your best Eldar units to muck around in difficult terrain and still be able to kill things.
Just my two cents. Best 'o luck!