What is the take on the orginal air cleaner that has the oil bath vs a chrome aftermarket cleaner in the cold?

had been using the aftermarket during summer and fall, but got concerned about the winter months.  
Of course my orginal breather doesn't have the wire from the thermostat to open and close for the warm air and not sure of the affects if I tie the flap open on the cleaaner to get warm air all the time.

I was wondering if the aftermarket causes a lot of trouble in the winter idling, warming up, etc or do a lot of you use the orginal cleaners.
Has anyone allow warm air to come through the carb all the time.

Thanks
Ron

Thanks, but didn't want to start a debate. Just thought as long as some of you all have been around the bugs, might know if cold weather has that much of an adverse affect on the carb or how much of it is myth and that the orignal oil breathers help or not so much in this part of the country.

Ron