I really like both Blaze albums, but Virtual XI will always get the nod from me.
I have loved VXI since I first heard TAATG, then purchased the album and heard the rest. I actually like every song from the album, there are definitely no songs that I would want to be replaced, I think each song compliments each other well and I like the overall sound of the album. I think the biggest mistake fans make when listening to both Blaze and Paul albums is comparing them to Bruce! If you can't get past comparing either of their voices to Bruce and just listen to the music, then I feel bad for you. I feel if VXI was just an anonymous album from the late 90's it would have been much more successful, but when everyone is comparing it to Powerslave it's going to lose all credit. I'll admit that VXI doesn't live up to Maiden standards, but it's a solid 7/10 album (9/10 for me at the moment, which I listened to it as I read all 9 pages of this thread).
The X Factor is also a great album, I listened to it yesterday (trying to get my mind off The Book Of Souls haha). Definitely an album that I feel needs to be listened all the way through. It took me much longer to appreciate than VXI, which I loved on my 1st listen. I also listened to both albums numerous times before knowing anyone else's opinions (members here and other forums, as well as my friends) so I made up my mind without being encouraged or disencouraged by others. SOTC, The Unbeliever and The Aftermath are my favorites from the album, the live performance of The Aftermath found on Best Of The 'B Sides is f***ing awesome!! Judgement Of Heaven is also a great song and especially the intro fits so well after The Aftermath, it feels like after the war and after seeing The Aftermath you see the sun come through the clouds and brightens up the day. I give The X Factor a 8/10, though it might change in the future. I also love Virus, that's a great song. I feel the only problem with the Blaze era is the repetitive chorus'. I dislike Man On The Edge for that reason alone, good song but "falling down, falling down, falling down, falling down ect." Blaze really got the bottom end of song writing (as far as repetitiveness) through the Maiden years, which results in him getting bashed for being a poor vocalist.
Overall, there is just something about both Blaze albums that really draws my attention. They are both great hard rock/metal albums that makes me want to just rock out, which at the end of the day is what they were originally intended to do. I would have liked hearing a 3rd Maiden album with Blaze, but not if that meant not having Bruce on Brave New World. A Blaze album in 1997 would have been fine though! I must say that I hate the artwork for both Blaze albums though! They are just too dark and scarwy for my taste lol I do like the red color on VXI and I like the alternate cover for TXF though.