If you're trying to figure out if you should get the traditional straight strap or the angled strap, here are some things to consider when making the choice:
Bottomline: If you're primarily interested in doing ruck (backpack) carries, it would be easier to use the angled strap pod. If you're interested in doing the torso carry and a variety of carries, the straight strap would be a better choice for you.
Detailed Explanation:Traditionally the straight strap pods were made for the purpose of torso carries but because of the design of the narrow blankets, it has more versatility than it used to. Please keep in mind that if you want to do torso carries, you'll need to have some substance in your chest area to do them or you'll end up with the pod and the child sliding down your body. Typically, if you can wear a strapless dress, you're fine for torso carries. It means your DH won't be able to use it for torso carries. (Believe me, my DH has tried. 
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The angled strap is best for ruck carries as it brings in your baby closer to you than the straight strap. So other than the torso carry which you can't do with the angled strap, either styles can handle all different carries. However, you'll need more strap length with the straight strap to do carries like the front facing-in carry & front facing-out carry than if you were to just to torso carries or ruck carries with them.
Here's a photo of me using the angled strap pod with my 26mo (in the photo) daughter:
