visitor visa questions for in-laws

[haripp]

Have a few questions regarding visitor visa for in-laws. Would really appreciate your feedback.

1) Both me and my wife work. I'm confused with who should be sponsoring. What may be the income requirement (I realize it may be subjective). My income is higher, but won't daughter sponsoring parents instead of the son-in-law make a stronger case ?
Can the letter to the consulate mention both our incomes ?

2) Can assets specified in I-134 also be in spouse's name or should it reflect only items owned by the sponsor ?

3) If both kids are in US, should it be specified in DS-156? Someone advised parents not to mention that all kids are in US as it reduces the chance of getting visa. Is it advisable to do this ?

Thanks!

[immihelp]

1 & 2. Let your wife sponsor them. Show incomes/assets of both.
3. Never lie. Always tell truth.

[haripp]

Thanks for the prompt response..
So, in I-134 should we add both our incomes and put just 1 number or specify it separately. Also does that mean providing both our employment letters.

[immihelp]

Just put 1 name.