Opinions on these floor options?

[hokypoky]

Hello! I'm putting down flooring over the concrete in the basement, no subfloor. My space is 12'x17'. What do you think of these options? There's a pretty big price range - they include shipping. Has anyone used the Softwoods flooring? I didn't price Costco puzzle mats because some people said they had to do 2 layers. My #1 concern is the high impact and protecting my joints. I've spent hours reading posts here, but am having a hard time deciding.

Thanks for your input!

Alessco Softwoods Interlocking Tile $658

http://us.ironcompany.com/cgi-bin/m...O3vb92Va2Va7mvb9%?FDS=66371901702.10.31.54.34

Great Mats Cushion Tile (black) $878

http://www.greatmats.com/products/cushion-tile.php


Great Mats Tile Flex $1331

http://www.greatmats.com/products/tileflex.php

PaviGym Aerobic Group X Flooring (include "Cathe" discount) $1215

http://www.kieferfloors.com/store/pavigym_groupx.html