Also have to agree with Bedouin and MC in that you should try before you...erm...trek,
IMHO each manufacturer have strong and weak dishes, I got caught out with a mountain house salmon and potatoes in dill sauce (shudder) its possibly the worst thing I have ever eaten but I just took it as granted it would be good after eating the utterly delicious MH spag bol and lasagne.
American Military RCW (ration cold weather) is a dehydrated meal made by the american mountain house team, I did manage to snag a couple a few years back and they do pop up on ebay from time to time, they have different menu's to MH meals, but the same quality.
Real turmat have some good dishes but are an aquired taste, wolf fish casserole anyone? no? how about reindeer stew then? on the other hand their chicken in herbal sauce is great (chicken pasta). at £9 per pop they are not the cheapest but the calorie count is top notch.
If you scan Ebay or order direct from Drytech you can find their REAL Field Meal which is a ration pack designed for the Swedish army and is a bit cheaper, has a few more menus and the rather delicious Real chocolate.
Fuizion foods as MC said have a strange chemical after taste in some of their dishes altho their chocolate orange rice pudding was fine, the dishes also seems to have larger chunks of meat / veg in them that dont allways rehydrate properly again this is only my experience.
Expedition foods / be well / pack n go - are the same dehydrated meals you get in the british army PCR (Patrol climate ration) designed as a lightweight ration for cold and tropical environments they are quite similar to mountain house but with more british orientated menus, lamb hot pot, shepards pie ect ect, pretty good their army packaged variants are super rare but can be found on ebay and come with those strange carbo jelly bars that taste great (similar to clif bars shot blox).
I have only limited experience with Trek n Eat, it was some kind of spicy beef noodles, reminded me a lot of a pot noodle tbh, not in a bad way.
No experience of MX3, bla band or adventure foods yet.
And of course you can make your own packs, tho it may turn into a full time hobby in itself, get a de hydrator and have a go, theres lots of videos on you tube on how to make them, tho i mainly did the noodles / rice combo mixed with dried veg and beef mince (bought the beef mince from mountain house btw) one favorite was a pack of Asda roasted onion mash, hand full of mixed veg and mince and an oxo lol they turned out allright.
All are "cooked" with my trusty jetboil and eaten with my spork
Edited: 10/05/2012 at 21:26