We just got back Thursday and I did not notice any difference in crowds from the weekends vs. weekdays.....both were busy! I imagine it will only get busier until after Easter.
Space Mtn. lines got up to and over 1 hr long. By late afternoon, FP's were no longer available. I would go get a Space Mtn. FP as soon as you get in the park......and be prepared to wait in line to get a FP! Someone in line with us was joking about gettting a FP for the FP line!
Buzz was usually around 40 min. Maybe go get that Space FP, and then immediately hop into line for Buzz. We were going to Buzz one evening and the line was quite long (longer than we had first rode it) so we did not do it again.
The Matterhorn was touchy all week.......either it was broke down or the lines were long. We finally got in line for it (after 4-5 attempts) because it was a now or never situation. Surprisngly, the line moved quite fast but it was still long. We probably waited 25-30 mins in the evening.
The DL rides that have FP's are:
Space Mtn.
Buzz
Autopia
Roger Rabbit (but it is not connected to the FP system so you can get one for that ride and immediately get one for another FP ride)
Big Thunder Mtn. Railroad
Splash Mtn.
Indy
As far as Space, Splash and Indy.....try to get those FP's as early as you can. We blew it a couple times and did not get FP's until later and then we ended up not using them because it just didnt' work for our timeline.
We left the day before the parade so I dont' have any info on that.