Yeah, let me be the first to tell you that the Snugli is NOT the best thing out there... I gave it up for good around 2 months...
There are a lot of awesome carriers out there, but since you're thinking Disney, I'll keep it relevant to that.
Mei Tais are very comfortable (WAAAY more so than a "crotch dangler" like the Snugli/Bjorn), and they can be used for much longer (both time-wise during the day, and age/weight wise). The biggest caveat of a mei tai is that, well, you have those straps, which take a minute or two to tie on, and at least a little bit will trail on the ground at some point whilst you're getting it on (which is bad 1. in a crowded area, as someone might step or trip on your strap, and 2. that it'll get all dirty) It's also not *super fast* to get on (an experience MT-er can get a kiddo on in under a minute, but a minute is a long time, if you think about it). But they tend to be cool and comfortable in the summer - I used one almost exclusively last summer, and I'm a sweat-er.
I'm really into my Beco right now (
www.ecobabies.com). It's a soft-structured carrier, like an Ergo or a Patapum. Unlike those two (which I've either had or loaned), the beco feels a little lighter to me - the 'body' is lighter weight, so it feels less hot. I also have a khaki-strapped one, which also helps with the heat (also had a chocolate-strapped one, which I felt was too hot - again, I'm a sweat-er). The soft-structured carrier is similar to the snugli, which you're familiar with, but it has a wide waist belt designed to be more comfortable for you to wear a larger (read: more than 10 lbs
) baby in. It also has a wider bottom of the body, so the 'seat' hugs the bottom of the baby, with the Bub sitting more naturally - which is more natural for the baby, and easier on their developing spines as well. Plus, the Beco comes in way prettier colors
Most soft-structured carriers come with a hood (either detachable or attached), that you can use to shield a baby from the sun, which is great in the summer when it's hot, and when they want to sleep. Because there are no long straps to worry about like with the mei tai, it's less hassle and usually quicker to get on, especially on the go.
Another thing you may want to think about, especially for something like Disney, is solarveil, which will protect Bub from the sun (and a lot have hoods, which is great for a sleeper).
A great resource is thebabywearer.com, as well as
http://www.nineinnineout.org/ to see if there is a
NINO group near you (if there is, you can try on before you buy, and many NINO groups also have carrier libraries, so you can borrow a carrier for an extended period of time, usually a month.
And yes, that's my short answer