I preparing for SCWCD and just wondering which certification is more valuable?
Depends on what aspect you are talking about. For certification, SCWCD is more valuable, as it is a certificate, while IBM 484 alone is not. You have to pass also SCJP, IBM 287 and IBM 486 to get the ICED v5.0 certificate.
I just thought SCWCD is more tough than IBM 484? Please comment for my thought.
I would distingish the 2 exams as follows: SCWCD required you to have in depth Web component knowledge while IBM 484 required you to have a wide range but NOT too in depth of J2EE components knowledge.