Jungle Jammin in AK was the first parade we saw at the end of our first day at WDW and it set the mood for the whole week - upbeat, lively, fun! We sat across the street from the bird show where there is a little seating area, we dragged some chairs out to curbside, bought Mickey bars (right across from us) and had a nice leafy green background for pics! No crowds, no background noise, just happy, relaxed family groups watching the parade and enjoying the parade music. This was the first WDW parade and we were amazed at the smiles, eye contact and audience interaction from the parade characters. It's a must-see!
We saw all the parades at Disney and the afternoon MK is the most miss-able. Spectromagic is great too but be very early, an hour at least, to get a curbside position (we were on the Main St bridge).