Ps4 and xbox 1 are the newest, however the xbox 1 X and ps4 pro are recently released upgraded versions of those consoles (however for your situation i would stick to ps4 and xbox 1 as the upgraded ones are more for hardcore gamers). The ps4 and Xbox 1 have been out for a couple of years but the technology is still amazing and the next console wont come out for at least 3 years in my opinion. Now deciding between the two, ps4 is by far the more popular (having double the sales of the xbox 1) and for good reason, it is much easier to use and revolved around gamers. I would no doubt go with the ps4, i have one and you will not be dissappointed. Now i should mention the previous consoles, ps3 and xbox 360, are becoming irrelevant fast with almost no new games coming out for them, this means i would not spend my money on either of them.
Personally a gamer with experience with the 2 most popular consoles available right now.