Best Pay ware mesh with Vector upgrade in mind?

there are so many choices regarding a payware mesh for FSX I'm a little lost on which one to purchase....?

I plan on eventually upgrading to Vector and have UTX US and Europe for now.

Right now I'm trying to decide on FSGenesis, FSGlobal 2010, FSGlobal Ultimate and FSGlobal for FTX....

I've also heard horror stories when installing a mesh regarding airport plateaus and spikes shooting off into space.

I've also heard that many addons like MY City X and others have bad anomalies when installing a mesh.

Finally I know that FS Global Ultimate appears to offer the best lod and is from 9-1 meters where FSGlobal is a 19m mesh. Ultimate is probably better looking and more expensive but does the higher meter resolution cause more terrain and AP elevation problems that a 19m mesh from same company?

What's the difference between FD Global 2010 and FSGlobal 2010 for Vector? Can I buy that FTC version and install prior to owning Vector

So many options and so much confusion.

Thanks!