what are the pros and cons of each? Should I be using strictly text ads like ive seen some on this forum suggest?
from my research ... for google ads, text is the best because you will get paid more compare to Image Ads
it depends on niche and template, so I always check both for some periods each than decide which one to use for long term
People are familiar with image ads and know that it's ad. So normally they won't click it. While text ads, if you place and blend it well enough, people may think that they're links inside your web sites. Probably the CTR would be much better. I prefer text ads.
Text ads will attract more clicks for you , than those banner looking image ads. this is a proved fact.
text ads as long as you make them fit in with site and colors, but no harm in having both if it looks right.