Funny because Kabuto, Kiva, and Decade are in my top 5 from the series I've seen. They all hold a special place for me as well.
Kamen Rider 1!? WOW. Your friend must really want to understand Kamen Rider from it's roots. I respect that but it's going to take you guys FOREVER to catch up. Hearing you say those things about KR1 make me want to watch it as it sounds pretty great. Have you heard about the movie remakes they made for Kamen Rider 1, 2, and V3? I've seen them and they were pretty good. Here's the trailer for the first movie.
Well I've seen Kabuto, Kiva and Decade in that order... of these I can't say, they all hold a special place
I was trying to get a friend of mine to watch but he was adamant that he would watch from KR1 or nothing, so we got into that... only ep 7 in there, taking it a bit slow because there are only 33 or so episodes subbed yet. But by God I really love the character for KR1, so awesome. I think I might say he is my absolute favorite his candor and the way the series takes itself so seriously is amazing, plus KR1's fight scenes top anything I've seen in the other in terms of pure stunts. Also the camera work is super shakky but amazingly well done to add that emphasis and drama.
I'm thinking Kamen Rider Kiva might be right up your alley now that you're almost done with Kabuto. You can download the torrents for it on the same site as Kabuto. Just so you know, almost all Kamen Rider series last about 48-50 episodes with the exception of a select few.
I understand about taking a break from it. I have other stuff I watch as well.
The movie is amazing and I'm sure you'll love it once you see it. Make sure you watch the Director's Cut of it though and not the original one. The original one isn't bad or anything but the Director's Cut is just plain better.
I feel that. When I like a series I'll cram as many episodes as I can into my schedule. So after Kabuto do you want me to throw another Kamen Rider series your way?
P.S. Tsurugi is awesome. He's my third favourite character/Rider in Kabuto.