Advantages of servlets over jsp

in an interview i was asked advantages of servlets over jsp?
i could't answer.what r the advantages?pls reply

hi Taylor,
first thnks for reply.one thing i don't understand clearly is every jsp page is internally converted into a servlet(done by servlet compiler or what ever it might be)ok u said servlets r used more than sending html to browsers,such as web services ,file downloads,etc...
i have a small question here,we can put that particular piece of code even in jsp scriplets.what's different.
pls confirm my dought below...
can i say "in servlets u have control over init method as a programmer",
where as you don't have control _jspinit method as it is generated by the engine(jsp).
if wrong how can i write some thing into _jspinit() method?                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   

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