Solid State drives have a much much faster read speed than Hard Drives, but a much slower write speed.
I cannot confirm, but power consumption between HDD and SSDs are similar.
Data recovery with SSD is virtually impossible.
You get more storage for what you pay with Hard drives, whereas you pay more for less storage space with SSDs.
SSDs are more resilient to impacts and drops compared to hard drives, but I've dropped my external HD plenty of times. Still works perfectly.