the line was still as big as hell when I went inside for the show lol.. But well, I could go eat lunch afterwards

And if I did that, I would not have been able to get those special keychains, they were out of stock when I got back for the concert..
Well anyways, I think Halls are much better for concerts. More personal and the accoustics are usually better.
But I did enjoy Yoyogi's live and didn't find it that crowded compared to what I was expecting. In about 5min I was sitting in my seat and could get out easily as well. Maybe I was just lucky, idk? Well I also waited a bit inside so that people could get out. Maybe that's the trick lol
But here again, I did not experience Saitama yet, only once yokohama and Yoyogi

Tokyo Dome wasn't bad either if I remember well.