Funny this question comes up now, when I've been contemplating posting about which I prefer. Last time I tanked higher level, my group had a Bard first, then Bard had to leave so I found a Chanter. My experience? The Bard did good on keeping my mana up, however the Chanter did better. So guess I have to say that I prefer Chanters over Bards. Usually after buffs and taunting, with the Bard power usually kept myself steady at 3 bubbles of mana. With the Chanter it was kept at 4 bubbles.
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People don't like to be meddled with. We tell them what to do, what to think, don't run, don't walk. We're in their homes and in their heads and we haven't the right. We're meddlesome. ~River Tam
Sedao