Hi guys, which London Tune Hotel is the best in terms of location/convenience to touristy spots?

a) Westminster
b) Liverpool St
c) Paddington
d) Kings Cross

I was advised to book Liverpool St for transportation convenience as I would not have to keep changing trains to reach my destinations.

However, Kings Cross is now selling for £9 where else Liverpool St and the rest are at £50 to £60! If I choose Kings Cross, will I end up saving on accommodation but spending more on transportation?