Though not being too old myself, I do gravitate towards older shows. My introduction to anime in general was through the Toonami programming block. Specifically Rurouni Kenshin and Yu Yu Hakusho. Naturally, my introduction to manga was Shounen Jump and Shojo Beat. (I'm still waiting for Nana to be finished! More than ten years later...)
I have a love for the earlier Gundam shows though holding that 08th MS Team may be my favorite. I love the beauty found in hand drawn anime, and much prefer it to the CGI stuff of today in most cases, though I'm not totally a luddite.