Personally I don't like either of them - but then I don't think the choking risk is real either. When this first came up, I took a look at posts on choking and there are also plenty of posts about rabbits choking on both excel and allen and page, as well as a whole host of other weird and wonderful things including grass and hay! Of course there are a number of rabbits on here who have choked on SS, but my personal belief is that is largely because it's the market leader and hence more people feed it, so more people's bunnies choke on it compared to other things - and not because it's a higher risk.
That said, if you're intent on changing foods, I think it depends on your rabbits' constitutions. I have found excel to be too rich and gives many bunnies excess caecatrophs. I find Allen and Page at the other end of the spectrum and I have found that rabbits lose condition and weight on it. I don't find that bunnies find A&P very appetising, it's much more like the pellets you see in the bags of rabbit mixes. So I think which to go for would depend very much on whether your bunnies have a tendency for weight gain, caecatroph issues if fed rich food and whether they see a lot of other variety in their diet which might counterbalance the less nutritious A&P. It may take a little juggling to work out what works best for your buns.