What Bike. £400. Speccy Hardrock, Cube Aim, Trek or others?

[alfabadass]

Budget is £400. Can only go through Halfords or Leisurelakes as it's C2W.

I cannot make up my mind between these 3

Trek 3700 Disc

http://www.leisurelakesbikes.com/product/trek3700d...

Specialized Hardrock Disc

http://www.leisurelakesbikes.com/product/specializ...

Cube Aim

http://www.leisurelakesbikes.com/product/cubeaimha...

I'm a brand we and a bit shallow, but Cube is winning out in terms of looks and brand while the Specialized is not too far behind. The Cube is more expensive but doesn't have discs.

It'll be mainly for commuting and light off road on weekends so I'd guess either would be good? Anyone got much to say about the Cube or trek. I know the Hardrock is well regarded...?