Joint honours or single honours?

I am a second year student at the University of Glasgow and for those that don't know the system I'll briefly explain: at Glasgow we study 3 subjects for years 1 & 2 and then specialise in our chosen subject or two for the final two years (honours)

At the moment I am planning on studying a joint honours degree in English Literature and Language but I am beginning to sway more towards Single Honours English Language. I attended a presentation on the honours courses and I am interested in studying quite a few of them but if I do joint honours then my choice will have to be much more limited. Overall my grades in English Language are much better than my English Literature ones and I find the classes and revision much more enjoyable and rewarding.

So I am just wondering if there is any benefit in graduate prospects to have a joint honours degree? Is single honours kind of the "easy option"? Or does it make no difference whatsoever?

really appreciate some help with this!