After picking up the latest white dwarf I'm more enamored with the knight model than ever. I'm not going to pick one up but I eagerly anticipate facing off against it on the table. As for dithering... still no painting but I have worked on a 1500 point list. I figure at 1500 points an opponent could justify spending the points on a knight model. Specifically I'm trying to convince a friend to add the knight model to his 1250 raven guard army. As for the Eldar army list at 1500 here below is a snap shot of the models. At a later time I'll put my mind to building a 1500 raven guard list with a knight ally.
-- Edit --
Ok playing around with army builder and think following could be a fun list to play with Raven Wing and Knight
3 x 3 Bikes - Melta Bomb, 2 Plasma Guns, MM Attack Bike
2 x 5 Black Knights
Total Points: 1500
That gives you 32 double tap plasma gun shots a turn, 3 multi melta shots, 1 plasma cannon, 7 scoring units, and big bessie itself with the melta pie plate and D close combat weapon. Model Count is low at 24 models but the presence of the knight will draw fire away from the bike units.