Hi, I am in a similar position to you, having just finished my AS levels, and trying to decide between subjects for my university course, and which university to go to!
I am trying to decide between Philosophy/religious studies, English and Law
English has always been my number one, because for some reason, I always found it easy, however it doesnt seem to be my passion.
Philosophy/religious studies I am passionate about - I love debating and exploring unanswered questions 'why do we exist' etc
However, I believe I have all of the skills to be a lawyer, my analytical English skills combined with passion for debating seems to add up to Law. But, I am scared to jump into a law degree because I have never done it before (I too didnt take it at a level)
I do know that Law is a hard area to get into, as most law firms tend to pick from the traditional russell group universities that do traditional law degrees, ie Oxbridge, Kings College London etc
Personally, I would say go with your passion - English and History are traditional and well respected subjects for degrees and work with the same skills as you would use in a Law degree, ie being analytical and comapring evidence.
However, it sounds as though you may have a passion for Law, so perhaps the conversion course would be best for you, and if it isn't, then you have traditional subjects to fall back on.
You don't want to take a Law degree and wish you had gone with your first passion instead.
Good luck!
Jess