Akiyama's first year (he debuted in 1992, but he was only around for the last 3 months so we can't really count that as a "year") had him in prominent singles against Steve Williams, Kawada, DiBiase, Kobashi x2, then a bunch of tags. In all of them he's pretty solid and I think despite not being near the quality he would be he holds his own there. I'd say he did better than Senka though it's not as far apart as you may imagine. I put her relatively high on my VP100 list for this year and she ended up 85th overall, which for someone who just debuted is fairly insane.
Tamura only wrestled a couple of times in his first year but he was already pretty fucking good, maybe over Senka in terms of quality. Hashimoto we have very little of for his first two years but he was pretty much already great and the matches we do have show him way above his class as a finished product.