Has anybody tried both individually and preferred one over the other and why?
Has anybody tried both together and preferred that to either one individually and why?
Would there be a case for starting with with one and then switching to the other ie 3 weeks Nolva then 3 weeks Clomid?
Are there any other superior forms of PCT to consider?
Yes I've tried both. Nolva many many times and Clomid only twice. The first time on Clomid I felt quite emotional throughout, and the second time I felt the same, so I won't be running that again. Nolva is super for me, I feel really good on it and it seems to perk libido up for me. Its my staple pct at 20mg ed for 3 weeks followed by a week at 20mg eod.
There is a case for running both together at sensible doses (20mg and 50mg ed respectively), particularly after longer (10 weeks+) cycles. Plenty of people do this, so if both are ok for you its an option.
Other areas to research include alternative serms like Toremifene and Raloxifene which can both be effective and carry lower hepatotoxicity risks. Using AIs for pct is another option, either POM like Arimidex for example, or OTC like ATD . And finally the use of hcg, which is a subject in itself and ime only worth considering for cycles of 12 weeks and over (although others might think its a benefit below that length depending on their age, natural test production, and experiences).
I've tried all the above, and come back to nolva every time as it works for me.