@morpheus_: Wolverine is being discussed because CIB brought him up as well (which I guess happened because someone scaled Laura off of him). Not that I think his healing feats apply to Laura. I'm just providing info. As for the other thing, it actually makes his showing way more impressive.
Except it's been said and shown multiple times that Laura actually heals faster than Logan - even Logan's admitted this on several occasions. I think it's safe to say that any of Logan's healing feats could easily be applied to Laura.
For some strength feats for Laura, she's tossed a fully geared college football player over her head (during her journey into the Ultimate Universe in All-New X-Men), straight up tackled Rockslide in a football match (second last issue of Avengers Academy, and Rockslide is basically an 8-foot rock golem), and there are others already mentioned in this thread. It's clear that she has at least some level of superhuman strength through her healing repairing her muscles much faster than us puny humans.
Yes, Cassandra Cain is likely the more skilled of the two, Laura is still a very skilled fighter who's got every other possible advantage one could have in this fight. Including the one that would matter the most - she's too durable to take down for long, and while Cass would eventually tire, Laura could keep going for days if need be. I vote Laura 9 times out of 10.
The movie is very different from the comics on a storytelling level, but it borrows from several major storylines on a thematic level.
With Wolverine, there are so many comics out there that it's ridiculous. Old Man Logan is an alternate future story where most of the superheroes are dead, and it's widely regarded as one of the best Wolverine stories out there. It's also a stand-alone story so you don't need to read a whole bunch of other comics to understand what's going on.
X-23: Innocence lost is X-23's origin story in the comics, with Target X as a follow up - both are available together in the recent X-23 Complete Collection volume 1 compilation.
@werkudoro: Her blades are powered by psychic energy. Even if she can't use her TP long range in the movie, she's still got that. And it doesn't matter if Jean Grey could solo the Avengers with her TP alone.
You gave the X-Men team two telepaths against Marvel's team, which has no real way to defend against that, plus Jean Grey to counter Scarlet Witch's own telekinesis (Scarlet's telepathy only seems to work in very close range and on one person at a time). Bishop can just absorb everything that Iron Man and Vision throw at him and redirect it. Throw in a teleporter, two virtually unkillable mutants with unbreakable claws, a teleporter and the Silver Samurai suit that cuts through Wolverine's claws. He should also be able to chop Captain America's shield in half as well.
This is a mismatch in favour of the X-Men, to the point where Viper and Riptide won't even factor in. Jean Grey could probably solo this just by making the Avengers fight themselves, or if she goes phoenix and simply vaporizes them.
Since she doesn't have a totally adamantium skeleton, as mentioned above, I have a hard time explaining why Ras, being way more skilled, and who has faced faster guys, doesn't just cut her head off and throw her in the ocean depths.
Because her claws will cut his sword into pieces before he can do that.
Death of Wolverine was actually really well done, even if its follow ups were a letdown.
The new Old Man Logan series feels like a classic Wolverine story if you're into that sort of thing. It's also pretty brutal. All-New Wolverine is consistently my favourite solo title being released by Marvel right now and is definitely worth looking into if you like X-23 or are curious about her.
Apart from that and the stuff Koyas mentioned, there hasn't been too much of note from the X-Men since 2013. Well, except that the Black Vortex crossover ended up pretty terrible so stay away from that.