Comes down to budget and personal choice. Engel are a little bit noisier, Waeco are a fair bit cheaper. I run an 80lt Waeco for the food and kids drinks in the trailer and a 60lt Waeco for the grownups drinks in the Cruiser. Both do an exceptional job of keeping all things cold/frozen for days on end.
Price differences:
Engel MT35FS SeriesII - 32lt/44 beer cans = $1,199.00
Waeco CF-35AC VERB - 31lt/41 beer cans = $899.00
Engel MT60FS - 60lt/80 beer cans = $1,799.00
Waeco CF-60AC VERB - 59lt/81 beer cans = $1,199.00
Engel MT80FS - 80lt/118 beer cans = $1,949.00
Waeco CF-80AC VERB - 80lt/103 beer cans = $1,499.00
The average power consumption for the fridges is as follows:
MT35FS SeriesII - 0.5-2.5amps/hr
CF-35 - 0.85amps/hr
MT60FS - 0.5-4.2amps/hr
CF-60 - 0.83amps/hr
MT80FS - 0.5-4.2amps/hr
CF-80 - 2.9amps/hr
This is going off their brochures. We sell both, but personally i tend to favour Waeco. Less power draw, cheaper, excellent quality and very reliable fridge. Engel have stood the test of time, are made from steel so are more robust. BOTH excellent fridge/freezers.
Hope any of this helps.