[zaggernaut]

Ya I can pretty much say that in terms of relevancy and on-page optimisation LIve is the best engine. The AdCenter is actually manned by human editors for each and every ad thats submitted to them. So, basically if you work hard on your on-page optimisation and optimise relevant keywords, title,headings and keyword density, LIve would give you better result than Yahoo or Google. I can't say whether you would get more traffic in terms of numbers though.