Since choosing a pediatrician is so important, you need to address the issue! You could always start by talking to the pediatrician you have been using to see if he/she can explain the quick look. I'm not good at confrontation, so I can relate to not wanting to have that conversation.
That said, everyone's kids are getting lots of colds this year, and unfortunately, they are caused by viruses. There is no medicine that will treat a cold virus because there are so many variants of the cold virus that cause illness. The only thing to do is treat the symptoms, and as young as your son is, there aren't a lot of options. My doctor put my son on a decongestant, and it didn't do anything. You're likely to have just as good luck treating the symptoms with over the counter medicines and a vaporizor/humidifier. It will be a lot cheaper, too! :)
The fact that your doctor isn't automatically prescribing antibiotics for a cold is a VERY good thing. Ear infections can set in in a matter of hours, so your son may not have had the infections when he saw the pediatrician. My experience has been that a good pediatrician can see enough to make an accurate diagnosis VERY quickly. If there is no indication of a bacterial infection, prescribing antibiotics could cause the antibiotic to be less effective against bacteria in the future (due to bacteria building up a resistance to the antibiotic - this is also why is is so important to finish ALL the prescribed antibiotic). Also, I've been reading that it is becoming more common to not prescribe antibiotics for ear infections unless the child is obviously experiencing discomfort because the infection will pass almost as quickly without the antibiotic as with. I'll get off the soap box now. :)
Because of insurance reasons and moving, we've had 4 different pediatricians in the 3 years we've been parents. I've been thrilled with two, hated one (only visited once - he was cranky and put off by my son toddling over to him and being friendly), and am o.k. with the current doctor. The two I loved were in WI and IL. They really engaged the kids and were always helpful - even when we asked questions that I'm sure they get annoyed answering for the millionth time.
Our current pediatrician is at Fort Wayne Pediatrics - Dr. Sauer. I have had no complaints, and he has been friendly, helpful and great with my kids. Maybe I'm not sold on him because he's an Ohio State fan. :) (LOL) When we started with him after a lapse in insurance, my daughter was behind in her vaccines, and he seemed kind of short with us when my husband started asking questions about the vaccines based on lots of studies showing a possible link to autism with vaccines containing thiomersal (or thimerisal). My husband took her to her latest appointment, and he said he was great this time, and answered his questions without any problems.