The trip to Froghall is much longer, and the moorings before the Black Lion really feel remote. The narrow bit past the railway station is well worth doing. You are unlikely to get through the tunnel, so don't miss the winding hole before it. The moorings there are nothing special at all. If the steam train is running, it's a nice trip.
The Leek Arm is from memory only an hour or so each way, so while you're there you might as well go and have a look down there too. There's a nice mooring in the pool before the tunnel. The tunnel is also worth a trip through, and you can moor at the end and walk into Leek.
In Chester, there are moorings close to the city above the staircase locks, or you can go down and there are moorings below which are less built up.