Reddit reviews High School DxD New - The Series [Blu ray] [Blu-ray]

Some quick questions.... Definitely not the right place to do this but I don't want to make my own thread. There's a daily deal Amazon (Canada) sale right now for some anime titles and I have some questions on 'em.

Here's the link.

First, should I be picking up Black Butler Season 1, then both books? I am assuming those are basically Season 2/3.

Also, there is this High School DxD. It doesn't really say what season or anything this is- just the series. Is this the whole series?

Any other recommendations I should pick up in the sale? Seem like solid prices for Canada. There's also a Book of Circus Limited Edition for $63~ CAD or so that I could pick up instead of the one on daily deal.

I recently got the Season 1 on Blu-Ray from Funimation (the North America region) and it has both sub and dub. I got it from Amazon for 28 dollars around Christmas and season 2 was around 38 dollars on Christmas. The price are always changing on Amazon due to the amount they have in stock so you can check for yourself:

Season 1 via Amazon

Season 2 via Amazon

P.S. There is a drop down menu for the second season because Amazon has it listed twice for some weird reason and sometimes Amazon has it in stock on the drop down menu for a lower price.