I’d say the Jeffsy, but you don’t like it. A mate of mine had no end of trouble with the bolts on the rear suspension linkage and went through 1 or 2 relatively expensive replacement sets before something else went wrong. He fixed the bike up and sold it on, he was sick of waiting for it to be sorted.
This was a couple of years ago, and maybe things have been sorted since, but I’d not get a Cube because of his experience.
The Spectral is a nice bike, but it’s 27.5 (I think) and I’d want a 29er (I have a 29er Jeffsy). 120mm on a 29er will feel like more travel than 120mm on a 27.5, so I wouldn’t worry too much and I have to say they’re a nice bike too…