I like tip action single hand rods and full action DH rods. Tip action DH is much more critical to line weight and head length and more demanding to cast as well but when short and shortish (Scandi) shooting head weights and lengths are tuned to personal "taste" it is very easy, light and fun casting. Full action DH rod behaves rationally with variety of lines and for long casts and long heads absolute the best choice.
Tip action SH rod is good for me because hauling has big role in my SH casting. I have cast only few One SH rods and they are great but I can't say anything about One Switch or DH rods.