Mine would follow like so;
1. Rurouni Kenshin- I loved the action scenes, they were heart wrenching at times, and also laid some truthful historic background in it as well. I also liked the attitude expressed by Kenshin, reading his lines were great
2. Trigun- Another great, shorter series, like RK...it was so similar to it as well, the characters were basically the same when it comes to personality
3- Rabbit Doubt- One of the greatest mystery manga ever written, its so real, so alive. I never wanted it to end..
But this list could go on 4ever