my friend you are dead wrong
melee took what was broken in the original and fixed it. Then they added new stuff, some of which was broken. But overall there is MUCH more depth to melee. The very fact that you can AIR DODGE and thus make edge gaurding harder is proof of this depth. Wave-dashing, which is the offensive/defensive manuveering of melee, cannot even be produced in the original. Fast falling doesn't exist in the original, so shuffling doesn't either. The addition of a new special move for all character, and addition of charged attack, an overall addition of lag time spikes and lag time meteor air attacks which requires MORE SKILL and TIMING to land than simply cordinating the button combination. Theres more that i could go into, like the powered down throws that make you work for the kill, or set up juggles and combos, or the reflecting by power shielding, OR the ABILITY TO GRAB ITEMS MID AIR, or the ability to hook-shot onto ledges. MELEE offers MUCH MUCH MUCH MUCH more than the original, more then just speed and characters, it offers way more depth.
Melee can be classified as a 2D fighter by the hardcore. The same cannot be said about the original. This may be the reason why you like it, and thats ok, but the fighting game community is pretty dead set on this agreement, and they love melee for its depth. You should visit smashboards.com to see some real depth and download some videos, esspecially the japanese fox on fox or falco videos, as they are the top tier characters of melee.