Well you are applying to very good universities which is excellent if you get the grades but not so good if you dont so i would keep your favourite which is in my opinion southampton and sheffield and choose other universities that require lower grades looking at the modules makes them more appealing
Obviously a MEng will be looked at as better a you learn more but employers are always going on about experience so maybe you should consider taking an industrial year
Your english seems pretty good to me but you should check the english requirements for all the universities