Tengen Toppa Gurren Lagann, Panty & Stocking with Garterbelt Recommendations
One word: Gainax... but that's not enough. These two Animes are full of crazy-over-the-top action, both also have crazy adult humour
If you even remotely enjoyed one of these, you'll surely enjoy the other.
If your new to Gainax Animation then I recommend you to watch this awesome masterpice ( The same guys who gave us PSWG )
Epic animation, Epic Characters, Epic Plot
If PSWG isnt your cup of tea then TTGL might be the one your looking for
Both of these shows are made by Gainex studios, and if you like enjoy seeing demons being destroyed then you should enjoy both of these shows.