Rinne no Lagrange, Cross Ange: Tenshi to Ryuu no Rondo Recommendations
+ All main mecha pilot is womans
+ War between two sides
De Metrio Empire vs Le Garite Empire (Rinne no Lagrange)
Norma vs DRAGONs & Human-Mana Empire (Cross Ange)
+ Similar character, for example : Embyro (Cross Ange) & Lizamarie De Roschefall (Rinne no Lagrange) is THE CREATOR. I say "THE CREATOR" because main story/conflict/mecha unit/source power using in Rinne no Lagrange & Cross Ange is created by both them.
+ Some yuri element can be found in both anime too
+ Mecha design also similar : Para-mail & Vox is transformable mecha units. Both mecha units have Humanoid mode & Bird-like mode