Hmmm how could you choose! Both have their merits - both icons - RWD and nostalgia of the three door, but 4x4 of the Escort plus always seen as the 'best' Cosworth.
If I had the two in front of me with keys to both it would be a tough decision.
And AFAIK they didn't make any factory rwd Ecos'.
What are good Escort Cossies going for at the mo? As, for a change, I'd be tempted with an Evo X for that money.

(Don't kill me, I know that wasn't the question!)