Optically and functionally, there shouldn't be much of a difference between there two brand of SCTs, if there is any at all. Flexibility-wise, however, I would gladly recommend Celestron over Meade.
(This actually is a bummer for me because I'm a satisfied owner of an LX-90 8" SCT EMC. I'm not the original owner, and I don't know how many owned it before me, but as one of the preeminent astro blogger once said, "it simply works.")
If I knew then what I know now, and had the choice instead of the darn astro-fever, I'd be an even more satisfied 8SE owner considering the following:
1. 8SE OTA can be easily removed from it's mount and mounted on a GEM without much fuss.
2. The 8SE mount can then be used to mount another OTA of your choosing, as long as it can carry the weight and size.
3. Or you can sell the mount if you want to since there's a market for that due to reason #2.
4. To get a wider FOV, you can use either of Meade's 0.33xFR/FF (if you can find one) or 0.63FR/FF in addition to Hyperstar.
5. Meade don't do Hyperstar. (Big loss to them and their users)
6. Meade simply doesn't supply useful accessories such as Starsense and Wi-fi dongle that Celestron do. Their answer to Celestron accessories? AudioStar. It's nice to have but not half as useful in my experience, and there's no volume control.
I understand that the OP asked for LX200 vs 8SE comparison. I've never had an LX200 nor used one before yet I know that model is a step-up from the LX90. I believe, however, that the reasons I have pointed out still applies.