Doing PhD from Europe or US is not a question if you are dedicated and are a good student. One thing I don't like about Nepalese community is "ma chai janne aru sab khattam" type of mentality. It's simple: if you can get into higher ranking schools ... go for it. There are schools in US which might be lower in rankings than UK and UK has schools lower in rankings than the schools in US. If your focus is to get cultural different cultural taste, you can opt for UK schools. Come on guys... you should be able to make decision yourself and get/collect information by your own research rather than finding solutions from Sajha... My view may not be right. .... but just some thoughts !