Hey Traveler 7,
I recommend you flying KLM via AMS
is a beautiful airport (probably the best European for transit), you can enjoy doing whatever you want (shopping, relaxing, plain-spotting, etc).
KLM is a very good airline (don´t expect much on the intra-european flight). But from AMS
is a beautiful flight. You fly a 744, nice and friendly cabin crew (blondes!), good food, very large range of beverages, good movie selection and always something extra you don´t expect.
It´s always a joy flying KLM.
Try it out.
Please communicate your final decition for us to know what you choose.
Have a nice flight and stay in Mexico (I lived there 3 years, very nice country).