Share your opening repertoire and explain why you choose those openings!

As white: 1.c4, this move fascinated me as a developing chess player and I tried multiple times to pick up without success. Eventually I had enough positional understanding to make it work and then I fell in love with the botvinnik setup. 

Against 1.e4: the Scandinavian. A recent addition we'll see if it sticks. I've tried a variety of approaches. 1.e5 white just has too many viable approaches and it's easy to get killed in pet lines. 1.c5 I liked versus anti-sicillians, but the full blown open is a theoretical beast and very sharp. 1.e6 I would still play except for wanting to gouge my eyes out in 3.exd5. So right now I'm trying the Scandi on the logic that its book is small and the theory is manageable for me to master. 

Against 1.d4: Nimzo-Indian. IDK this opening just kinda clicked with me. Given my dislike of theory you'd think I'd play something simpler, but for some reason I've never felt the need to go away from it. The Nf3 pairing has rotated a few times for me. At the moment I'm playing a Ragozin, but have tried various things.