The Later Seleucid is my favourite army (though I'm still struggling to use it well). I have tried a lot of configurations but this is what I'm trying at the moment:
4 x TC @ 35Pts
3 x 8 Phalangites (Protected, Average, Drilled, Heavy Foot, Pikemen) @ 48 Pts each
1 x 6 Thorakitai (Armoured, Average ...