I have been in your shoes and made my decision to go IP. I just bought an IP 37 (1997) and I am waiting for some completion of some electronics and other minor things from the IP dealer I bought the boat from in February. I looked left and right, compared, read and found that with most upper class cruising boats, it's not the boat but the crew that makes or breaks in offshore sailing. I am looking forward to early retirement in about 4 to 5 years and will sail "Odyssey" coastal until then. Then she will undergo a stringent checkup and update if needed to get ready for my first crossing towards Europe.
I believe an IP will take good care of you if you take good care of her! Get as much training/experience as possible so you are a good match for this fine boat.
S/V Odyssey IP37