Newbie seeking help (English football)

[shark2434]

Hey all, this is my first post, before I'm ready to lose money on betting, I would like to be clear on how many football leagues are there in England, coz I'm abit confused, here are the leagues that I know so far,

Premier League
Championship League
League 1
League 2

then there's Blue-square north/south
and northern/southern premier league

So my question is are there a total of 8 leagues? And if the last two lines count as 4 leagues, how competitive are they compared to league 1 or 2. Sorry for my English ... thanks alot guys...