Bow, i consistently do more damage work the bow over the solar beam, and in combat, stegs will go through most battle line. Steg alpha is my general in 90% of my armies
I am currently theory crafting a TL with a skink chief with flamers, and then running 3 stegs with bows and one EoTG. ou cant base the eotg numbers and call them the same as a steg number, because it will be used differently in the game... even if the stegs stats are similar.
If you bring Kroak, a Starseer and a starpriest you should be generating extra CPs. Now 2 bastilidons with a skink priest need 4 CPs every turn to crank out their full dmg. My meta is filled with a lot of big deamons, Lord of changes, Keeper of secrets and bloodthirsters a plenty. All the investment in bastilidons would probably pay out well against targets like those.
vs Daemons they are definitely worth their points. I felt bad taking mine against my friend’s Nurgle daemon list, and that was 1.0 and with just Astrolith.