Well like I said do you agree or not agree there could be a case for Venus being over Seles, especialy given how one sided their history is (even considering Seles was past her prime). Meanwhile there is no case for Henin being above someone like Seles or King, so Venus can be put in the top 10, Henin cannot. I think past greats like Graf, Seles, Evert, Navratilova, would all have a ton of trouble with peak Venus because her power, speed, and athleticsm probably surpasses all of them. I dont think any of those at their peaks would have much or any trouble with peak Henin however, she just doesnt bring anything to the table they couldnt handle. Henin is basically a poor women Hingis except with more power than Hingis. If you look at only Henin and Venus together it might seem like Henin has a shot in the comparision, but when you throw the other all time greats in there too, Venus clearly stands in much beter stead than Henin IMO.
As for doubles when players are virtually inseperable in singles, then doubles is a tiebreaker, especialy when there is the vast difference there is with Venus and Henin.
The 4 slams are all roughly equal today but Wimbledon is still the most prestigious. The biggest hole you can have on your resume of all is a failure to win a Wimbledon title.
I agree on Henin.No doubt she just cannot be talked in the same sentence as the great Martina Hingis.