Hey Brad it's tough to say when you're replacing a ball that has lost reaction.  Are you wanting it to replace the VG's more recent reaction or newer?  If you're looking for newer I would think the shape of the Modern Marvel would be closer to the VG.  The Nano Solid and Vivid are MUCH stronger than the VG, and the Victory Road Solid is a little cleaner through the midlane.

If you want the milder motion the Victory Road Solid may be a good choice.

Thanks for the input. I have only been bowling about 5 to 6 years. I don't have much experience in picking bowling balls. The only balls I've used/owned have been the original VG and the T-Road Pearl. The VG is what really pushed me over that 220 average along with my first 800 and 300. Instead of getting the VG resurfaced again, I decided to keep it at it's current reaction because I bowl great with it on dry lanes.

VG is tough to duplicate.  I never liked either of the Nanos the Anarchy or the Virtual energy as much as the VG. 

A lot of people wil disagree with me, but the current Lucid is the best replacement I have seen for the VG.   

I'd lean towards what guffnuh and avabob are saying.  Both the Lucid and Critical Theory are going to be the closest in terms of strength and overall reaction.

I owned a Nano for about a year and it is much stronger than the original.  The Vivid is also a lot stronger but not as much as the VG Nano.  The new Sync is even stronger than both of those.  Ultimately I went with a Defiant which works out better for my game and is more predictable.

You may be able to still find a Virtual Gravity online though. 

FYI  There is a 16 NIB on eBay.