So yeah, literally from turn one I was working with Alex and had no intention to stab him.
You *marched on Armenia*! You have a very strange definition of friendship.
Anyway. As Alex said, neutral Italy (protip: Not really a fan of this way to play Diplomacy, but figured it was a shot, once) rigs the deck to a degree. It makes E/G vs. France & R/T vs. Austria more desirable. If the game idles up and nobody pressures France or Austria, they can potentially take a lot of Italy - although Austria threatens it much sooner. Also, re Alex's comment, I'm not sure if a 1901 F/A alliance is really viable - if A Mar & F Tri go off to do other things, they can both potentially score an SC for their owner; if both want to concentrate on Venice, then only 1 member of the alliance will get it. If France gets it, Austria is a fool since F Trieste can't get to Rome or Naples early. If Austria gets it, France is taking a real gamble on Austria being willing to rotate an army around to support France's army into Rome... maybe... eventually. Yeah, no.
Anyway. This meant that I planned on being really buddy-up this game. I extended happy feelers to both Germany & England. Since the Italy issue made things awkward, I was happy to offer Belgium to both of them as a price of alliance. If they both bit, great, I'd go collect Italy; if only 1 was interested, then I'd ally with them; and if both hated me and G/E was afoot, I'd try and stall 'em as long as possible to let Russia take some heat off of me. As a side comment, apparently Excal was still angling the Russian alliance after Spring 1901 was out. For future reference, a Russia that moves A War-Gal is not Austria's friend! (Then again, Turkey moved on Armenia and WAS Russia's friend, so who knows.) I was generally chattier with Rat than Mage despite the fact I played a bunch of League with Mage at the time; this aided my general inclination to side with Rat...
...although I'm pretty sure in 1902 both Rat & Mage were out for my blood. I was luckily partially saved by Alex #YOLO offering St. Pete's on a silver platter to Rat, which worried me anyway if Rat was going to use the build to crush me with. I suspect Rat was assuming I'd suicide march on Italy and be forced to attack me to keep France in line in the long term while its armies were away in the short term... luckily, I didn't fall for the trap and reoriented enough armies to make it so that Rat wasn't going to solo-conquest me. (This was good play by Rat, incidentally, an ignored France that collected Italy for free would likely become the senior partner in such an alliance.) Luckily for me, relations between Rat & Mage broke down at some point, and Rat & I were able to slowly back off each other (despite the English having an army in Burgundy!), as I was not going to face down a coordinated E/G alliance by myself. I toyed with the possibility of suggesting E/F/G in a general kill-Alex alliance, but eh, that plan has too many problems of none of us getting fat, so it was a lot safer to just bulldoze Mage. Sorry, Mage, as far as psuedo-backstabs go, it seemed like you really were orienting your armies elsewhere for an Italian conquest + Russian defense, but I eventually decided it was better for me and safer to attack through you.
I was quite worried in the last turns that Rat was going to turn around and stab me, as I did leave Brest open for the taking one turn in the name of getting more pressure on Germany & the Med, but "luckily" the threat of Alex was large enough that it was pretty clear we'd need to stick together. I was kind of surprised that R/T managed to hold out after Con was taken, but Excal's ghost fleet stopping a retreat-to-Aegean probably helped patch that one back up. There's definitely an alternate history where Excal didn't confirm the retreat to the Aegean, Alex crushed Turkey, Rat & I stabbed each other, then Alex solo'd off the southeastern corner of the map. Anyway, after Rat didn't stab on that crucial turn, I felt pretty safe that he & I would at least be able to set up stalemate lines for an E/F/R or E/F/R/T draw, which is indeed what happened.
Good game!
If we ever do it again, though, let's have 7 players and ideally replacements, even if it means recruiting mercenaries from other boards / friends / etc. One of the nice thing about Diplomacy at the old board I played at, always plenty of replacements handy when people quit, which is an unavoidable thing on the Internet.