Based on the usual conflicting advice

, I'm thinking of going one of two routes.
The first route is pretty much what Notoptimal described in his post; he put very effectively into words an overall game strategy I was thinking of pursuing. After my first attempt at a specialist economy in the previous ALC, refining it in the next one with another Philosophical leader had a lot of appeal. So Alexander isn't ideal for the SE, mainly because of his starting techs? Therein, as Notoptimal pointed out, lies the challenge. If I go this route, I would definitely remain on Prince level.
However, Aelf's points are very well-taken. Leaving aside the idea of pursuing different strategies in the ALCs for educational purposes, if I was just sitting down to play a non-posted game with Alex, I would play it very much as Aelf recommended. In many ways, that's a tried-and-true strategy I've employed several times before. If I go this route, to keep it challenging, I would finally make the jump to Monarch (gasp!

) with the ALCs.
The thing is, I
can't leave aside the educational element of the ALCs. That is their whole
raison d'etre, so that I and others can learn.
So here is what I propose:
Let's try the SE with Alex on Prince. If it fails, as Notoptimal said, we get to learn how to "punt" an SE and go to a CE. If it works, well, maybe it's not the optimal use of Alex, as Aelf points out, but it will certainly help further illustrate the proper use of the SE, and again, it adds a little more challenge to the game. Either way, I would also like to try for my first Conquest victory, so let's throw that in as an additional challenge for this game.
But this will be the last ALC on Prince. (Gasp!

again.) As several people have pointed out, I'm winning handily on Prince. I've hung on this long to the level mainly for educational reasons, again, for myself, but as time has gone on and I've become more adept at the game, mostly for others. Once we exhaust the alternative strategies with this particular ALC game, I think it's time to move on.
(Full disclosure: I have to admit that on my own, I'm starting to play on Monarch level now. I've had one win so far as Catherine and it looks like I'm on my way to another one with Elizabeth. I've made some slight adjustments to the ol' tried-and-true strategies, but so far I'm not finding Monarch to be such a night-and-day contrast with Prince. This is my way of reassuring everyone playing on Prince, Noble, and lower levels that the ALCs will still be relevant to you.)
The other factor in my thinking here, you see, is that the next ALC will be with Huayna. I know he's kind of popular, but I've never played a game as him before. He's often touted as an ideal leader for beginners,
or for making a first attempt at a new level (ah-ha!), because his characteristics lend themselves to several different approaches (Financial for building, Aggressive with a good ultra-early UU for warmongering, starts with Mysticism if you want to go the religious route). So he strikes me as the perfect leader to use for my first (public) attempt at a Monarch game.
Sound like a plan?