That's an interesting collection of movies, I wouldn't say they're all classics but it's a fairly good package. Sadly quality should be crappy since these are all public domain titles, but hey, if you got this for free, enjoy them!
Some of my definitive recommendations would be:
Battleship Potemkin - Absolutely essential. Maybe it would be helpful to be familiar with Eisenstein and the context of his movies. This is a highly politically charged film and very moving. Maybe it can seem terribly dated now, but Eisenstein was pretty much the granddaddy of modern filmmaking so his use of
very precise editing, the way music is supposed to work within films (all his music vs. image theories are still relevant today) and the grandiose dramatic texture make it one of the truly great classics.
The General - Buster Keateon was such an expert comedian and filmmaker and this is my favorite of his little jewels. This one still manages to be surprising just because of the whole inventiveness of it and it still provides many laugh-out-loud moments.
Intolerance - Well... Approach this one carefully. I believe it's a very relevant and important film in a historical context but this is a hugely racist movie in every single way, don't expect to be entertained for it. In these times it can become burdersome and moving. Not casual entertainment but interesting.
Dr. Jekyll - I'm guessing this must be the John Barrymore 1920 film. If so, YES, just for the amazing performance of Barrymore.
Cyrano -Not sure. If this the José Ferrer title? If it is, his performance is very good but the film has dated badly.
His Girl Friday - Fun retelling of The Front Page, one of the best screwball comedies. Very fast dialogue!
Sabotage - An absolute yes, a very early Hitchcock but full of sweet moments. I've never managed to watch a copy in good condition of this one, so expect a particularly crappy image.
White Zombie - This is a great horror title and stands proudly as the first ever film about zombies. It is one of my very favorites, and is highly sophisticated for its time. Oooh, those cool camera moves!
Carnival of Zombies - Not an all-out horror film but still verrry creepy. It was done independently on a very tight budget but keeps brimming with ideas and cool visuals. This one is all about the mood.
God Told Me To - If this is the 1976 Larry Cohen film, I hope you'll love it as much as I do. It's sort of a horror/sci-fi tale about a serial killer. I'm not sure why but it's a blast. If you're familiar with Larry Cohen and you end up enjoying this, I'd recommend the remastered Blue Underground release filled with some cool extras.
Little Shop of Horrors - Don't miss this one! Classic Roger Corman cheapie and lots of fun!
Dementia 13 - Another cool Corman cheapie, but famous for being the first feature film directed by Francis Ford Coppola. I think it remains to be really cool and enjoyable. Beware of the axe-wielding maniac! Again very moody chiller.
The Brain That Wouldn't Die - Crazy mad scientist horror film. This is one of those movies that are so terribly bad, low Z-grade trash that it's a complete riot! Get some popcorn and have fun with it.
Hope you have fun!
Oh, one question, Dressed to Kill? Is that the DePalma film? I don't think so but I don't remember a previous version of it.