I rewatched the 2004 Monaco GP yesterday (uploaded onto
F1's Youtube) and whilst it's always been a dull GP, I definitely enjoyed it much more in the refueling era for a few reasons.
1. Drivers were always pushing (as they were running out of fuel), so even when it was boring you knew they weren't just cruising 5-6s off the pace like today
2. It was generally a 2-3 stopper. Even if overtakes happened in the pits (which they still do today!) there was still a lot of strategy to look forward to
3. The cars look much twitchier. It's great to see.
On Sunday, the drivers will start on the S/M, cruise around slowly until a gap opens up, make one pit stop onto the C3 and then they'll drive slowly until the end.
I do think it should be made a mandatory two-stopper, forcing everyone to run each tyre once. You'd see the pit windows widen massively and drivers encouraged to push to build gaps.