I havent actually tried them so I apologize if it seems pointless for me to post but......
The We Vibe 3 is the most popular. The We and the Lelo have remotes- though the Lelo seems to have issues with the technology. The We seems to get better reviews for comfort. The Picobong seems fairly useless. The We 3 is the strongest.
All depends on if it fits you (in relation to the location of your G-spot and clit) and what positions you prefer.
I sold tons of the We 3 when I was working retail and only 2 or 3 people ever said they didnt like it whereas we had one Lelo that sat there for 6 months
bonus: hold these toys at the base of cocks during felation- many other uses besides the G/clit clasp.