Really OT: Android or Symbian phone?

I currently think about buying either a Huawei/T-Mobile Pulse (Android) or a Nokia E52 (Symbian). Comparing the phones, the Pulse seems heavy (>130g vs. <100g) and clumsy (~14mm vs <10mm), it does not feature an FM radio, and the battery time is much lower. OTOH, Android is — while not how I would like to see Linux on phones — "cooler" than Symbian. It seems, there is at least a Python interpreter for Symbian, as well as free sofware to play Ogg Vorbis. But would the Pulse allow me (= technically) to remove software I don't want? (E.g. a Flash player which serves no other purpose to annoy me with ads I don't want to see, but have to pay for in terms of expensive UMTS traffic.) The opposite of CyanogenMods work :~) What is less broken in respect to usability? Android or Symbian? Which is more friendly for fans of free software? After all, both systems are based on free software...