Top 100 Generals

The French attack commenced at 2pm.  Wellington was present, in command, by 3pm.  The battle continued until about 9pm (this was a few days prior to the longest day of the year).  So Orange was in command for the first hour of a 7 hour long battle.  On that basis I do not see your characterization of Orange having been in command and Wellington being 'late' as particularly accurate.

So now the British are down to as low as 25%? Even the source which you provided earlier gave them 'credit' for 35%. Regarding the composition of the other armies, do you have specific information on this, or are you just assuming? In particular, what percentage of the Austrian army was actually 'Austrian' (I.e. excluding Hungarians, Czechs, Slovaks, Slovenians, Croats, Serbs, Poles, Italians...)? In any case, the Dutch / German contingents were integrated into Wellington's army, so it is still legit to refer to the collective whole as the 'British army'. It was Britain's national contingent, regardless of what it was composed of. In contrast, Blucher's force was a distinct separate contingent from that of Wellington's. So it would not be appropriate to refer to the combined forces as either British or Prussian.
 

Only if / when you provide a compelling reason for me to do so.

I still don't follow your logic here, beyond simply arguing that the website says the French 'won' so therefore they did. Ney's original force heavily outnumbered the original British force facing them. Ney, plus d'Erlon's I Corps outnumbered the total British force that was present at Quatre Bras by the end of the day. Wellington 'supported' Blucher by engaging a superior force, denying it the use of the lateral road to hit Blucher's forces at Ligny in the flank and preventing those French forces from engaging at Ligny at all. It just seems to me that you've set an impossible objective for the British to have achieved and then claim a French victory on the basis the British having failed to achieve that impossible objective. I have already agreed that in the manouevering up to June 15^th, Napoleon had gained an advantageous position between the British and Prussians. Wellington himself admitted that 'Boney' had 'stole a march' on him. On the 16^th the onus was on Napoleon to take advantage of that position. A true French victory on June 16^th would have consisted of Ney gaining the crossroads and the use of the lateral road early, then sending forces, plus d'Erlons I Corps down the road to take Blucher in the flank. Since Ney did not gain the use of the lateral road during the 16^th, failed to have any of his force or the bulk of d'Erlons I Corps engage at Ligny and failed to effectively 'defeat' Wellington I don't see that the French achieved any significant result at Quatre Bras that enhanced their chances in the overall campaign. They no doubt won a victory at Ligny, although not a total victory. However, the outcome at Quatre Bras did not assist in the outcome at Ligny, nor did it impair the ability of the British army to resist in the subsequent phase of the overall campaign.

You left off this part of the summary, from your own source:

American military historian, Colonel John Elting writes: "Had Davout, instead of Ney, commanded Napoleon's left wing, there can be little doubt that Quatre Bras would have been a French victory."  (Elting - "Swords Around a Throne" p 644)

The 'would have been' appears to suggest that perhaps, as it was, the result was not such a clear cut French victory.  Since Ney's original force heavily outnumbered the British army at Quatre Bras, there was practically no prospect for the British defeating Ney and then intervening on the battlefield at Ligny.  As it was the British managed to tie up Ney's force all day, prevented Ney from reinforcing the French at Ligny and forced Ney to call upon d'Erlon's I Corps, which then prevented the bulk of that formation from intervening at Ligny either.  As I mentioned before, there was no possibilty of Wellington positioning his entire force at Ligny, because that would then allow the French (Ney in particular) to position themselves on his LoC.  What happened at Ligny was the result of the fight between the Prussians and the French forces there.  With Ney's force, plus d'Erlon's I Corps not engaged at Ligny, there was no way for Wellington to intervene there.  I admit there are plenty of websites that will 'score' Quatre Bras as a 'French victory'.  However, in terms of the analysis of what happened and what impact it had on the subsequent campaign you've not made any argument (to paraphrase you've said 'it was a French victory because this website says so').  Given how heavily outnumbered the British were at the start of Quatre Bras, it was impossible for them to achieve what you've implied they needed to in order to consider the battle a British victory.  In that case, the issue was already decided before the Battle of Quatre Bras was even fought, as a result of the manoeuvering that took place up to the 15th.