Both look like fun. If you opt for the first list, consider sticking some of your elites in the Heroe's path formation. It will be trickier to support your on-foot squad supported with the 'seer, but between his small model profile (letting him hide completely behind terrain), his awesome cover save, and the fact that he can infiltrate, you ought to be able to position him to keep him safe while also throwing dance of shadows or veil of tears onto the troupers at a distance.
For the slight hassle that goes to your seer, you get the ability to easily start shooting things with your death jester turn one (you bet your bottom opponents don't think about running off the side edges of the table when deploying!) while also splitting him off into his own objective-scoring squad with an admirable cover save. This also lets you outflank your solitaire, which I find to be a huge help. Infiltrating him generally makes him get shot up by my opponent's small arms fire on turn 1, and deepstriking him means risking scattering somewhere you don't want to be. Outflanking gives you pretty good odds of winding up somewhere useful, and you have more control (especially with his movement speed) of where on the table he winds up making it easier to hide behind cover. An outflanking jester isn't terrible either, baiting your opponent towards a board edge with your main force, then shooting them off the table with the jester, going for rear armor on vehicles, positioning him so that he can more easily shoot that character hiding in back, etc.