The vitrification cycle that I did at GIVF, I definitely had that moment with the first donor I chose. I loved her! But she turned out to not be available - I guess someone ahead of me chose her before I got my "yes" in - and I chose the next one based on practical considerations but had no sense of absolute satisfaction and happiness with the choice. The sperm donor I used based on Dr Sher's HLA-DQ alpha theory and definitely was a practical choice though certainly a fine one. The donor embryo cycle, I definitely experienced it. I thought, "oh, how lucky I would be to be your mother" and just loved the donating profiles.
What about you, especially if you have cycled more than once?