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Spec wise, I would go with the Pioneers for the little extra $$, the 92dB SPL (Sound Pressure Level) rating is going to be noticeably louder than the 88.1dB SPL rating of the T3's.

SPL is the speaker's efficiency rating and is measured with a dB meter at a distance of 1 meter from the speaker with 1 watt of power driving it, for every 3dB increase in SPL you need 2x the power from the amp.

For example, at 32 watts RMS from the amp the Pioneer's would put out about 109dB SPL, at the same 32 watts with the T3's it would be about 103dB SPL. To match the Pioneer speakers 109dB SPL, the T3's would require 128 watts of power.