Since I´m mexican I guess I can say some things.
Hi everyone.
First of all I´m really impressed that american people use mexican detergent. Here a lot of people use american detergents like Tide, Purex, Surf, Dreft, Gain, Arm & Hammer, Woolite, and so on. In my opinion, mexican detergents have better performance here than the americans because of the water. I don´t really know what water contains but when you tried using american detergents your whites will get gray or yellow. With Tide, you´ll get this results faster. I have used american detergents in USA laundromats and got surprising results.
Here I use Ariel with OxyAzul, this is something like Oxyclean mixed with Ariel which cleans 100% better than Ariel alone.
Second, for those you who have had oversudsing experiences, there is a special type of Ariel which is called Baja Espuma (Low Suds). It´s made specially for Front loaders. The bag is green but you should be aware, because Ariel has several tones of green so you should pick the one that says Baja Espuma (Low Suds). This one is wonderfull since you don´t need extra rinses to get rid of the suds. I use it in my Crolls (posted in the imperial forum with some pictures) and Whirlpool Washer and get excellent results everytime. You don´t have to worry about dosing. Just put the same amount as you will put of regular soap.
BTW, this kind of soap could be peoples´ headache. I know a lot of persons that says "when a soap doen´t make suds, it´s not good, or is not washing". You should be pshycologically prepared for not having suds at all unless you drop the hole bag on the washer. In front loaders you´ll get a little suds in the first turns but after a while they will disappear.
In Mexico the best combination you can use is Ariel with any of the color available of Suavitel. This Fabric Softener has a special substance that eliminates any huge bed or trace of suds, eliminating the need of extra rinses. It works like magic. I think they also have very good smells just try all the colors since each has a different smell. The one used the most is the blue one, but I personally prefer the white one because it never stains the clothes and doesn´t turn blue the automatic fabric softener dispenesers in any of my washers which I hate to see stained.
Ariel also have some other presentations like Ariel con blanqueador (Sky blue bag with non clorine bleach), Ariel con Downy (Blue bag), Regular Ariel (Dark blue bag), Ariel brisa fresca or something like that (Fresh Breeze and its light green) and I think thats all. Everyone has OxyAzul.
The other detergents you´ve mentioned are also good but Foca or Roma will make your clothes look old in a short time, here I just use them for white socks, underwear, cloths for cleaning the house. They do clean well but are very corrosive for clothes.
Viva is also an excellent option, it also have a Low Suds and non clorine bleach edition. Ace, I haven´t tryed but people say it cleans really good. It has a non clorine Bleach version as well.
And for delicates I use Woolite which gets excellent results for handwashables everytime.
If anybody has any further questions, I will be glad to research a little and answer it as best as possible.