<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by mshaikun:
I am a Delta Gold and will never get any higher. Is that Plus enough for Skyteam Lounge access. Would NW or CO Gold be better? </font>
You could also consider moving over to Air France. Here you can become AF+ Rouge (Elite Plus) after just 40,000 miles. It would probably only make sense if you fly a lot international.
Another advantage with AF+ is it doesn't have the MQM system, so if you tend to fly on the discounted tickets it is another plus.