As always, answering which one of the two is going to carry greater weight with a potential employer is rather subjective - it's really something that each one is going to decide on their own.
Insofar as I'm concerned... I don't give Brainbench's exams any weight whatsoever (and have not, when making hiring decisions). There are a few major failings with Brainbench's exams that render them useless to me:
Security - Brainbench's exams are issued over the internet on another computer in a non-proctored environment. There is no assurance that cheating has not occurred, or that the person whose name is on the certificate is even the person who really took the exam.Open Book - EVEN if you can assume that the person's the one who took the exam, you have no mechanism to know that the candidate did not look up the answers in another window while workingTimeliness - Sun is bad with this as well, but I've found certain of Brainbench's exams seem to need more of a refresh topicallyMarketplace Reputation - Perhaps it's more based on the perception from when they first emerged, but I know that many of the other professionals I work with and talk to consider Brainbench to be poor-quality. I'm not going to make it sound like I think Sun's exams are perfect. (SCDJWS could really stand to be updated, for example, and the software can be glitchy at
test centers.) But... in my experience, I've found that Sun's own certifications enjoy a greater weight in the marketplace.