I sometimes wish I had kept a record of all the girls I have seen over the decades.
I have to agree that I have also had a very high success rate with poles, both friendly and sexually enthusiastic.
I gave up on British SPs when the poles arrived, as British SPs were just so poor in comparison. No kissing, meh looks, ..... The poles were an eye-opener as to what sex could be like.
Ethnic Russians I found to be very energetic in bed, but very cold and business-like outside. As I prefer a GFE, not really to my taste. "Why waste time kissing" seemed to be a common attitude.
Good success rate with older Hungarians who seem to have a massage training, as I do like a good raunchy massage. Not so good with younger Hungarians.
Romanians an almost 100% disaster area, both in Romania and here. Some superb looking girls, but shite attitude, they are just after your money, and couldn't care less about their clients.
I had one Brazilian who I was gutted when she left. My attempts to find a replacement were disastrous - stunners but shite attitude, and over-priced to boot.
In much of Eastern Europe it seems to be common that you have to pay extra for kissing, if available at all. No kissing doesn't make for a great punt for me. Most of my successes in places like Prague have been with imports, I suspect Ukrainians, but it is hard to tell. Some memorable experiences with Latvians, less so with other Baltics.
After poles, my second highest rated has to be Thais, some stunning girls and an attitude to serving their clients that puts everyone else to shame. Other Asians, especially Chinese, a very mixed bag. Unfortunately Chinese are very likely to be b&s.
Indian and Pakistani: they seem to be far too reserved to put their heart into it. I had one exceptional experience, but mostly quite bad.