Questions:
The poll consists of 14 questions/statements you have to rate with a score from 0 to 20 (0 meaning "I absolutely don't believe so" and 20 meaning "I'm certain about it").
A1) There is or has been extraterrestrial life in the Universe
B1) There is or has been extraterrestrial life in the Milky Way galaxy
C1) There is or has been extraterrestrial life in the Solar System
A2) There is or has been extraterrestrial complex life in the Universe
B2) There is or has been extraterrestrial complex life in the Milky Way galaxy
C2) There is or has been extraterrestrial complex life in the Solar System
A3) There is or has been extraterrestrial intelligent life in the Universe
B3) There is or has been extraterrestrial intelligent life in the Milky Way galaxy
C3) There is or has been extraterrestrial intelligent life in the Solar System
A4) There are different extraterrestrial intelligences communicating with each other in the Milky Way galaxy
B4) Extraterrestrial intelligence has attempted communication with us.
A5) There are different extraterrestrial intelligences in contact (physically interacting) with each other in the Milky Way galaxy
B5) Extraterrestrial intelligence has visited Earth sometime in its past (since the origin of our planet)
C5) Extraterrestrial intelligence is currently present in our planet or visits frequently (either with us realizing or not)
I may be a little late on the scene, but I figured I should put my ten cents in, as this is a prime interest of mine.
EDIT: I've added some rationale to my results.
A1 19 There is/has been ETL in uni
B1 19 There is/has been ETL in MW
C1 10 There is/has been ETL in SS
(Statistically speaking, I find it highly unlikely that we are totally alone in the galaxy, let alone the universe. I am not absolutely sure however, as no-one truly can. As for life of some sort in our solar-system besides our own, I think it decently plausible that it would be possible, either in the present or in the past).
A2 17 There is/has been complex ETL in uni
B2 15 There is/has been complex ETL in MW
C2 8 There is/has been complex ETL in SS
(I think lots of Great Filters apply to complex life arising - but it does seem quite possible. Regarding complex life in the solar-system, I gave it a higher score since I take into account the possibility of life existing on Mars when it was more habitable).
A3 18 There is/has been ETI in uni
B3 14 There is/has been ETI in MW
C3 2 There is/has been ETI in SS
(I subscribe to a Great Filters-type approach to this question, and think the issue is further complicated by any number of factors, such as additional late Filters. With C3, I include something along the lines of visiting ET sleeper probes or something similar, whether biological or not).
A4 12 There are current ETI comms in MW
B4 8 There have been ETI comms attempted with us
(We have no idea how hard it is to communicate between species and between stars, but the technology that would seem to be a likely medium we already have or can conceptualize. I would say that the vast distances between burgeoning civilizations would hinder meaningful communication, so that most communication is fairly indirect. Beyond these, there could be vastly more effective ways we haven't thought of for communication. As for us, we haven't be monitoring the skies for very long or very thoroughly - so it's plausible that distant contact could have occurred without us noticing or even being around to notice).
A5 7 There is physical contact between ETI's in MW
B5 4 There was physical contact between ETI and Earth in past
C5 2 There is currently ETI on Earth
(Space travel is obviously very hard, and so I think it would be exceptionally hard for ETIs to physically contact anybody else. On the other hand, highly advanced life could sneak in unobserved via any number of methods, provided that their hosts were less advanced than them. This is still unlikely though).
A friend of mine would also like to submit his opinion:
A1 18 There is/has been ETL in uni
B1 14 There is/has been ETL in MW
C1 10 There is/has been ETL in SS
A2 16 There is/has been complex ETL in uni
B2 14 There is/has been complex ETL in MW
C2 7 There is/has been complex ETL in SS
A3 13 There is/has been ETI in uni
B3 8 There is/has been ETI in MW
C3 1 There is/has been ETI in SS
A4 6 There are current ETI comms in MW
B4 3 There have been ETI comms attempted with us
A5 3 There is physical contact between ETI's in MW
B5 2 There was physical contact between ETI and Earth in past
C5 1 There is currently ETI on Earth