Taking a large step into 2D programmin. Help needed also! Thread

Straight to the point> I've learned a bit more than the basics of Java and C++, done a few games with Game Maker, then coded a bit with Python, but now I'm stuck with a big dilemma:
What I want to do:
I got some friends together and we're working on a 2D game (I'm not willing to use game maker for this one)
I can't tell you guys anything about the game yet because I don't know any either.
The Problem:
I don't know which path should I take. I'm not looking for a 10 year hardocore programming scenario neither a drag and drop engine. But I don't know if I should use XNA and code with C#, or download some Libraries and program with C++, or perhaps get a powerful 3D engine like JMonkey(which I have it and I love it) or Ogre3D.

The thing is: I want to use all the engines/languages above but i'm not sure I could use them all at once though.

Thanks for your help and sorry if I'm posting on the wrong forum or making stupid repetitive questions.
Hope y'all have a good day!

Why would you want to use them all at once? That doesn't really make any sense.

If you already really like JMonkey you may as well stick with it.

Perhaps you didn't get what I was asking. Of cousre I don't want to use them all at once, I'm saying that I'm fascinated with all of them and I don't know which would fit better for me(developing a 2D game)

To develop a 2D game, I would use C++ with a high level lib like SFML (Object oriented, 2D, audio, input handling...) because I like to have full control on my game, to optimise and I code for some times now. But a engine for 2D games would fit better if you think you will go too slow with C++ (like Construct or Game Maker).

Python is an excellent language to start a project or make a prototype (maybe with pygames) as it is easier than C++ or C# to learn and use.
Anyway I would not use a 3D engine as it would be a bit overkill, unless you really are familiar with it.

But such a choice is really a matter of what you want and what your game needs!

Now that's a proper answer. Thanks!

fredrb wrote: Perhaps you didn't get what I was asking. Of cousre I don't want to use them all at once, I'm saying that I'm fascinated with all of them and I don't know which would fit better for me(developing a 2D game)

This line you posted threw me off:

"The thing is: I want to use all the engines/languages above but i'm not sure I could use them all at once though."