Thanks for the help!
Below are some comments regarding your comments:
1. I was happy to see the one comment regarding Legacy not supporting
MAPINFO, since I did not know how to replace it as suggested.
2. I use Legacy because I found it to be the most stable for me, ie, I never
had a problem with it ever except at the end of PLUTONIA & EVILUTION
when it unexpectedly died and I couldn't ever complete their final levels.
But I thought I could live with that. However, I had the following issues
with the below suggested engines:
PrBoom - I just didn't like not having mouse-look and could not live
with movement coming from the mouse.
PrBoom+ - I had never heard of this one until now, but will give it a try.
ZDoom - I had the same issues with this as with PrBoom (I think).
Doomsday Engine - I used to use this until I came across some level
that had barricades moving up and down that never
went high enough to allow me get under them. This
was kind of a show stopper (without dealing with
clipping).
Odamex - I had never heard of this one until now, but will give it a try.
