I don't like R5 either. May I ask why you don't like R5, because I think Arc Midi R2 is the best case they have ever made. I am just curious to know what you dislike in R5... H440 is famous for it's bad airflow. It is my favorite case, the H440, but it really have bad airflow. It is really restricted.
Get yourself the Enthoo Pro, get rid of the 200mm front fan and add 3x140 intakes and 1 extra 140 exhaust, set them all at 7 or even 5V and stay quiet while having massive airflow inside the case. Like I did... Edit: some people say the 200mm intake is noisy. That is why I said get rid of it...
My main system is in a nanoxia deep silence 5. 2x 140mm front, 2x 140mm top, 1x 140mm bottom and 1x 140mm back. I removed all cages, using only the 5,25 for drives (with hotswap bays).
I cannot speak about the nanoxia fans though, I always switch everything to noctua.
If you are willing to experiment with form factors and stuff check this out: http://www.newegg.ca/Product/Product.aspx?Item=9SIA4FT48C7206&cm_re=haf_xb_evo-_-11-119-265-_-Product Cooler Master HAF XB Evo. It is really good case, because of the horizontal motherboard, so the gpu can't weigh in on the slot, nor the CPU cooler can damage the board. It's really nice. It's weird form and it have its issues, so yeah...