Carrera Gryphon vs. Giant Escape 3 - fast advice needed

Hi all, I'm trying to figure out which bike to get. I will be using it mostly for road and dirt track/towpaths etc. Nothing too challenging, a general use bike, that may come in handy for commuting in a few years. I will be taking it to uni when I go this September.
I can get the Carerra Gryphon for about £350 from Halfords or the Giant Escape 3 for about £250 from a local store. The Giant Escape 3 has a £50 off deal which will last until tomorrow (30/06/13), so I would love some advice quickly if possible!
This will be my 18th birthday present, and I think that my mother wouldn't be too happy paying the extra £100 for the Gryphon. She is also complaining that it is too much of a 'road bike' in that its thin tyres will not be suitable for anything other than roads and gravel paths. I have fallen in love with it however, but I don't know how likely it would be for me to get it.
Is the Escape 3 a good bike, comparable to the Gryphon?
Many thanks
I can get the Carerra Gryphon for about £350 from Halfords or the Giant Escape 3 for about £250 from a local store. The Giant Escape 3 has a £50 off deal which will last until tomorrow (30/06/13), so I would love some advice quickly if possible!
This will be my 18th birthday present, and I think that my mother wouldn't be too happy paying the extra £100 for the Gryphon. She is also complaining that it is too much of a 'road bike' in that its thin tyres will not be suitable for anything other than roads and gravel paths. I have fallen in love with it however, but I don't know how likely it would be for me to get it.
Is the Escape 3 a good bike, comparable to the Gryphon?
Many thanks
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