Good morning @tonycn, John has provided you with some great reading to help you make your decision.

First, I would like to address your question of choosing a doctor, and it has only a little to do with the prosthetic used.
My usual approach, which I ignored on my very first replacement, resulted in allowing the surgeon to use an implant that had already been banned in the UK and EU...followed 5 years later by numerous health issues, loosening prosthesis, and 3 revision surgeries.

At 53, and thinking I had bursitis and would be getting an injection, I was totally unprepared to hear "You have the hips of an 85 year old. They both need to be replaced." In shock, I did not ask enough questions, I did not do enough research, I did not check his post-op infection rate, I did not ask about post-op physical therapy, I did not listen to the little voice in my head that said he was arrogant and wouldn't listen to his patients. Surgery went well, but the hip was neve as stable as I expected. After two years, I had a lot of muscle pain along the side of the leg, and the doctor actually tried to convince me it was either "normal" or "imagined" - when in reality, he knew the hips were recalled, and he should be recommending replacement.

When I required revision due to breakdown of the implant used, I switched! To a doctor who explained everything, took a cautious approach, was open about why he was using the approach and materials he chose, answered all our questions patiently, and adamant that PT was mandatory for the best outcome. Ten years later, I have no problems with my "new new" hips, great mobility, and an on-going relationship with the orthopedist for other joint issues.

As for cement vs cementless, I was never a candidate due to family history of osteoporosis and degenerative arthritis, and a small bone structure making precise positioning crucial. Here is a comparison showing the loss in bone density with cementless implants at least 11 years after surgery. https://www.nature.com/articles/s41598-020-67189-x The takeaway - some cementless implants are better than others, and bone loss is less in men than women.

So, I guess that part of the decision is up to you, but it appears that there is no clear advantage of cementless prosthetics in the long term.

Here is a highly technical post-op comparison of the two implants you asked about: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7006600/

I hope you are not overwhelmed by all of this. My bottom line - do your research, choose the best doc you can and follow their advice.
Good luck, and come back if you have more questions.
Sue