More random thoughts:
-I have no idea what the hell kind of accent Zane was going for (British? Snooty New Yorker? Chicago?), and that just makes his performance even more hilarious. Also hilarious: the brief chase he has shooting at Jack and Rose WHILE THE SHIP IS SINKING. It just... kills the tension for about a minute or two because of how overblown it is. "I HOPE YOU ENJOY YOUR TIME TOGETHER!"
-I wanted to punch Danny Nucci in the face after about a minute. If he really sounds like that, I apologize, but I kept expecting him to ask about someone named Mario.
-Good Irish accent: Victor Garber. BAD Irish accent: Jason Barry.
-The "Nearer My God To Thee" sequence is probably the best sustained one in the film. It has all the great little emotional moments: the elderly couple on the bed, Garber adjusting the clock and staring at the picture, Hill going down with the ship, and of course "Gentlemen, it has been a privilege playing with you tonight".
-As awful as Rose's mother is, I do really like the silent way Frances Fisher plays the realization that half the people on the ship will die. Really, Fisher's fine throughout, but her character (save for a couple moments) is a total caricature like the rest of them.
-The scene where the lifeboats are discovering the frozen bodies is scary as hell.
-Honestly, the brief bits Kathy Bates and Leo had together kinda makes me want to see them in a son-daughter movie. They have a nice, understated chemistry in that area.
-Really, Leo's not bad in this at all. He just has some of the worst lines in the script, but then so does Kate ("I want you to draw me like one of your French girls" nearly made me gag). I think they do a rather nice job of selling the romance since it happens so damn quickly.
-The story seems paced quite well, it's just that half the dialogue is awesomely cheesy/dorky. And Cameron banging on the doom-foreshadowing drum got tiresome VERY quickly. My response when Leo's all happy about getting to be on the Titanic: "OK, WE GET IT CAMERON."
-No disrespect to Gloria Stuart, but the narration got a little tiresome after about an hour, so I was glad it mostly shut up once the ship began sinking. I agree with the assessment that Bill Paxton looks totally lost in the framing material, although I do kind of like how he plays the last conversation with Rose's granddaughter.
So yeah, it's not great by any stretch, but I still enjoyed myself immensely. Especially the second half, which is certainly a better disaster movie than any of Roland Emmerich's.