I like a lot the new X-wing... And for those afflicted with Neophobia, note the curious fact that the 'new' xwing is closer than the 'classic' one to its very original concept art, back in the 70's.
The most popular theory about the new lightsaber is that it's a makeshift, improvised, weapon. Much like instead of forging an elaborate, refined sword, someone bashed a crude, cold bar of iron until it somehow cuts. Probably, the knowledge of how to create a proper lightsaber was lost to him, but regardless, the masked sith came up with his own version of a 'lightsaber'.
BB-8 (the ball droid) is also OK to me. I have the impression that it will prove more functional than it seems.
