Yup. You could put every Misawa v Kobashii match in a hat, put one out and have a wonderful match to watch.
In regards to the question, my caveat is that in my personal opinion Ric Flair is first. He had a lot of crap later in his career but I don't blame him for that. But that's just something as a Flair fan I had to put in.
Between Michaels and Misawa, I would easily go with Misawa. What that man did in the ring over and over and over and over and over is just amazing.
The reason I cannot go with Michaels is that I don't feel he was as consistent as Misawa was. For example, when Michaels broke off with Marty Janetty, I thought he was fantastic... up until he won the world title. His first IC title run was great and his work leading up to the world title match with Bret Hart at Wrestlemania 12 was good too. But I found his first WWF Championship reign to be boring. For example, I personally find the "legendary" Iron Man match to be the most overrated match of all time (and I won't argue this with ANYONE, it's just my opinion). I literally almost fell asleep twice during the match. Now, his no holds barred match with Diesel was good, but from that until his feud with Sid, I was bored. I also found his match with Austin at Wrestlemania 14 pretty boring as well... but I guess he wasn't in the best of health so I shouldn't hold that too against him.
For me, Michaels really hit his stride when he came out of retirement. Pretty much everything he did from returning until retiring was just flawless. He was in the 2000s what Flair was in the 80s and Misawa was in the 90s: unequivocally the hardest worker of that decade.
But yeah, I guess that was the long answer, the short answer is : Misawa