Advice for my career

Question

Hi Expert, i am having around 10 years of experience and now i am working as Project Lead in CMM Level 5 company. I grown my career in developing asp,php,.net and still working on the same (VS 2010). I am not interesting in estimation, project planning and other PM works. I would like to solve the technical problems and want to continue on the same ladder. Please advice which route should i follow, go to PM ladder or an architect ladder. Thanks in advance, Kumar