Why is it that people avoid these high-leg delta option? You mentioned that this is a compromise, but i'm trying to understand what exactly is the problem with this options. Is it harder to load balance? is it harder to find breaker panels or is it something else....
That Wikipedia link explains it all.
The 'problem' comes when the 120V single-phase portions are used for lighting and other 120v things- you need to make sure that every 3rd opening in the breaker panel is NOT used as it is the high-leg and will be around 134v vs 120v when referenced to the neutral. Beyond that the addition of 120v loads unbalances the 3-phase loads because the wild leg only supplies the 3rd phase.
Considering you will be mainly running 240v loads using 2-pole breakers everything automatically balances out. Just make sure you never plug a 1-pole breaker into the wild leg slots as it will not be 120v.