Ah, didn't need to edit then - posted something assuming you were in the UK and then saw you were in Osaka...
Do you know where you'll be flying in the UK and what's available? Obviously getting used to the UK will be easier if you aren't learning to fly a new type as well. Never flown a 152 so I can't really comment, but i doubt it is very different to the 172 - may as well go for the 4-seater. Why not try both the PA-28 and 172 and see which you prefer? Most of us are used to one type before we try the other, and end up as die-hard high-wingers or low-wingers