literature's workload isnt that intense honestly (atleast from a personal preference) and in relation with history, it may provide very useful in terms of contextual marks as a large part of literature essays are set out on context. Language would be good for skills like persuading or creative writing, whilst literature is good for analysing and coming up unique interpretations. for me personally, i find lit as my comfort subject as going through analysis is rather theraputic (my other subjects are socio and psych). I would suggest you go through the specifications of both subjects and see which would interest you more, as well as look online of peoples experiences of both subjects (like ive seen alot of people regret choosing language). Good luck!