If you really don't want to go Trog or play Hu (this gives you an easier win), I like OgGl*Okawaru or OgAs*Okawaru (both are better than Fi). Wr is also something to consider.
Train Maces&Flails to 22, use a giant spiked club when its delay goes to 10 if you don't have something else that's better (whip of elec is better at low skill, for instance, and a giant club is better at 14ish levels).
After that, just go for Fighting, and Armour when you find a dragon armour or Okawaru gifts you one.
Either invest in INT for spells (you will probably end up in fire dragon armour or something similar then) or just go for STR and GDA.
Other non-Trog gods for GSC ogres that are good: Makhleb, Elyvilon, Nemelex, Yredelemnul (OgDK is pretty good, I won one without much problems).
Some winning morgues of mine should you be interested:
http://crawl.develz.org/morgues/0.10/El ... 145717.txt (OgWr)
http://crawl.develz.org/morgues/trunk/E ... 191140.txt (OgDK)
http://crawl.develz.org/morgues/0.9/Ely ... 120650.txt (OgIE)
I think the Wr and the DK are well-played and that the IE isn't too great. It is an old char.
EDIT: OgSu*Sif is one of the best spellcasting ogres, in my experience.