Never went to Grace before it got taken over by the ME demographic, had a look at Washington Square- too boring. Patpong was too commercial and the night market was a mood killer trying to get around.
Cowboy was my first haunt, Tilac to be precise, before it went trendy, violet and not worth visiting. My first GF was from there, till she got too grumpy.
Nana was the cheese though, paradise on earth. It died long ago though, when they put the bars in the square and Hollywood Royale closed.
After that I just went to Pattaya, which was great till the city council went mad and imagined it as some sort of Riviera.
Seems that all the old haunts are not very good anymore.