I personally like google better because whenever I type in something on bing it NEVER gives me what I'm looking for. Google does. On bing though I do like the pictures that they have on there.
I like Google, it's better in following reason - Google updates the algorithm in particular manner but bing doesn't. Google provide the equal weight age in some factors,but bing provides the weight age only in title and keywords, I mean it's loves title and keywords.
I prefer Google over Bing. Here are some reasons Google is better then Bing in a comparison:
Google and Bing Comparison:
Docs writing tool: Google Yes Bing No
Search Engine: Google Yes Bing Yes
Maps feature: Google Yes Bing Yes
3D Models on Maps Feature: Google Yes Bing No
Street View: Google Yes Bing Yes
Street View in all 50 states: Google Yes Bing No
Street View in all Canadian Providences: Google Yes Bing No
Street View in countries other then Canada, Europe and United States: Google Yes Bing No
Mail Service: Google Yes Bing No
Doodle for Peoples birthdays and/or Holidays: Google Yes Bing No
Rewards system: Google No Bing Yes
Current local time feature when searching time in any place: Google Yes Bing Yes
Flight service (to search airplane/airport flight info): Google Yes Bing Yes
Set a timer: Google Yes Bing No
A buyable tv from there company: Google Yes Bing No
A custom web browser: Google Yes (Google has Google Chrome) Bing No
Please correct me if anything I said in my answer is wrong. Thanks.