Ron Marz, Green Lantern, and Everything
An interesting interview concerning the entire tenure of Ron Marz on Green Lantern... Emerald Twilight... and lotsa other stuff here.

For the record, while I really hated what Hal had become during the course of the series... I thought that it was exceptionally cool that he took out so many other Lanterns and even Sinestro during his breakdown.

None of this detracts from my liking Kyle Rayner's Green Lantern, who may not have had a great mask but did use the ring in far more creative ways than Hal did. I especially liked the "Slamtrack" bit which knocked out Mongul.