I don’t know of any kind of seriously deep analysis (at least not published; I expect top players did their thing to keep winning), but I can tell you my thoughts on the matter. Be forewarned - most of this will probably be obvious. I’m just not an advanced enough player to offer true insight. Remember that even glacier decks are capable of rushing, and I personally think the strongest corp archetype right now (RP Glacier Rush) uses this strategy - get set up with tons of ICE and money ASAP, and then push out agendas like mad. It’s important to differentiate from a “slow” glacier and a “fast” glacier.
I personally feel both decks types - FA and glacier in both forms are completely viable - I also think a third “hybrid” deck type is also viable, just don’t ask me how to build it. I did take a shot at it with one deck of mine (HB - EtF) that I’ll post if anyone wants. Clot is definitely a speed bump for pure FA decks, but that’s all it is. In some cases, that’s enough to erode FA’s advantage and let the runner get set up for a win. Other times, it’s not. In some cases, Clot won’t be seen at all. I daresay the majority of runner decks won’t even play it. Even if they do, it’s almost always a 1-of, because it’s just dead against other matchups. Meanwhile, if the runner gets set-up quickly enough, they can sometimes lock the glacier corp out of the game, no matter how deep their servers.
On to runner matchups - this can also be a case of personal preference. Against Blitz Kate, I think all three have merits, and you’re probably about even with FA and slow glacier. The recent shift to Blitz Kate was because it was stronger against slow glacier than other builds against that matchup, while also being good against FA, as shown at Worlds last year. Fast Glacier might be your best bet here, specifically RP that I mentioned earlier.
RA-MaxX is fast, applying lots of pressure early and continuing on with a Levy to keep things going. It’s ultimately not very rich though, and has the potential to pewter out and if you can make the game go long. I think slow glacier is your best bet - FA won’t have enough ICE to survive the parasite storm and still get things done. Fast glacier is viable, but not ideal. I’m not too familiar with very slow glacier decks, but I bet someone is if you want suggestions. EDIT: Let me be clearer - MaxX doesn’t need much money to operate, and has a lot of money in the deck, but some of it will get milled off. If you can make runs extra-taxing (slow glacier), that’s your best bet to win against her.
Stealth Andy takes a while to set-up, but once finished with phase 1, moves into phase 2 very quickly with hyper-efficient runs. I recommend FA, specifically Astrobiotics to score out a good number of points before she can get set-up. Hopefully you have 4 or 5 points before she’s good to go, and then you need to draw like mad for the last points, which you SanSan or Biotic or Astrotrain out for the win.
The major corp archetypes I would look for right now are - RP Glacier Rush(probably tops right now; remember the days when Jinteki sucked?), NEH Astrobiotics (not dead, just adjust slightly for Clot), Blue Sun murder (billions of creds to make sure Midseasons/Sea lands), and probably a few others I can’t think of. IT Department seems good. Someone more familiar with corp archetypes can help you more than I can here.
Hopefully I was helpful and not disseminating bad information.