Snowflake Royal Without checking my gut reaction is Preston have a better record at this level and are certainly more established.
Plymouth often struggle to get / stay here. And their manager is ideally placed to judge his chances of getting them up then doing anything with them once here.
Seems a fairly solid step up to me. Obviously their fans would never accept that.
Plymouth is a big city with no other serious teams beyond them in Cornwall, so you'd think the potential to be at least as big as Reading is there, but for whatever reason they've never been close to achieving that. I can see why Preston would appeal with their better track record