Everyone should take this opportunity to acclimatise themselves to the
proper Japanese voices because I can't get through the English version without convulsing with dry vom
Legit though, I watched the Japanese version about fifty times before it was even released in English so I'll never be able to go back. I'm not a "dub vs. sub" nazi when it comes to anime and such, I believe in just watching what you're most comfortable with - but I hold the staunch opinion that the Japanese dub is far superior to the English dub and I don't think it's all down to my watching it with JP dub first. I find the English version absolutely embarrassing and awkward to watch, and I've never thought that about any other SE English dub when compared to the Japanese.