For a second I read this:
Option 1 runs faster but Option 2 is the right choice.
instead of this:
Option 1 runs faster than Option 2 and is the right choice.
If I had read it correctly I would have answered it right. :/
Anyways, very nice and detailed question with a very good explanation.
Best regards,
Andre Guerreiro Neto
Database Analyst
http://www.softplan.com.br
MCITPx1/MCTSx2/MCSE/MCSA