Someone else suggested 1,2,4 would have been even better, through omitting 3 which is considered dreadful by most who've seen it.

Oddly it's the only one I haven't seen, so I can't really comment :-)

I think I'd agree. I don't think I thought 3 was actually unwatchable, but I certainly preferred 4.

I have all of them on DVD (I bought the box set), so if you want to fill in the gap, just shout.

Oooh, that would be more sensible than renting from lovefilm, which I was planning to do at some point. I'm not sure I've the stamina for an Aliens marathon :-)

Whereas I can't stand 4 but like 3 best of the lot.

I quite like 3. But I can't do all-nighters anymore.