Spring Fishing

The usual eggs and minnows tight to the bottom in the pools (spawning activity of them and suckers is occurring, and they'll hit bait fish anytime), and if you fly fish, black stone flies and pheasant tail nymphs are absolutely dynamite at this time of year, flip a rock or look near the remaining ice flows or snow banks in the water, you may very well see tons of them.
 
All three of the areas you mentioned may hold fish, fresh fish, along with the "jack" runs, can be found in lower stretches, holdovers above. Can't really comment for this year specifically, haven't fished Erie since December, have heard from some that the ice jams at the mouth are keeping fish from getting in, but here's a video of some guys catching them yesterday https://www.youtube.com/watch?v=LzvWT_wUr7w&feature=youtu.be&a
 
 

If you have fished the creeks before its more or less the same IMO.
This year we have lots of water hitting the conditions right can be a challenge.
Also the smolts get stocked soon followed by the sucker run they both can be very annoying to catch you just need to be flexible and move around til you find the steel.
Overall they are big trout in a stream do not over think it!
WCW

I personally like sight fishing a little more in the spring than in the fall, so that I can keep my hook out of the smolts.  There can be black swarms of them in some holes and nearly impossible to keep off the hook when you run into them that thick.  My advice if you run into lots of smolts is move on and just keep searching for areas where there are more big fish holding with less smolts.