Advice Please: Ridgeback Speed Vs. Giant Alight 3 Vs. Raleigh Strada 1 Vs. Trek 7 Fx

Hi all,

I would be extremely grateful for advice on those few bikes. Basically I'm looking for a commuter bike (I've decided on a hybrid) ideally under £350. I don't know much about the specs and of course every shop tries to sell e their bikes. I'm not fussed about more than 18 gears, I want something comfortable to take me 6 miles each way, reasonably light and fast, but obviously for this price it's not going to be magical
Giant Liv Alight 3: http://www.giant-bicycles.com/en-gb/bikes/model/alight.3/19207/77385/#specificationsRidgeback Speed: http://www.ridgeback.co.uk/bike/Speed-SE-Open-Frame Raleigh Strada 1: http://www.raleigh.co.uk/ProductType/ProductRange/Product/Default.aspx?pc=1&pt=266&pg=10704 Trek 7 FX: http://www.trekbikes.com/uk/en/bikes/city/recreation/fx/7_0_fx_stagger/ Dawes Discovery 101: http://dawescycles.com/product/discovery-101-ladies/

Really appreciate any input!

Cheers
Ally