I do build lexs on occasion but now that h production is catching up mostly seniths. Never build levs personally (rather use the iron for more lut production) .... Or camos just because i do not want a pile of the little gas guzzlers. Just my current 'style' as it keeps the fleet mobile.

I'm doing no camos at all. First priority are Sentih. If I have not got enough hydro or if I need my hydro for something else (like research), I build LEX instead. And I build LEV to make use of my iron. Better than wasting it, and believe me, I have a lot of iron left after I filled my queues.

Get Camos for defense
Lex and Senith for attack
Noah's for shield/fodder